Search a number
-
+
121012110201200 = 245217145911219649
BaseRepresentation
bin11011100000111101010011…
…110101111001000101110000
3120212110122102000200102101212
4123200331103311321011300
5111330130300202414300
61105212110155015252
734326556621020221
oct3340752365710560
9525418360612355
10121012110201200
1135615a4747a549
12116a4b5aa3a528
13526a515632b2a
1421c50359bd248
15decc09159935
hex6e0f53d79170

121012110201200 has 120 divisors (see below), whose sum is σ = 307854803174400. Its totient is φ = 45554340659200.

The previous prime is 121012110201181. The next prime is 121012110201209. The reversal of 121012110201200 is 2102011210121.

121012110201200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012110201209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98608976 + ... + 99828624.

It is an arithmetic number, because the mean of its divisors is an integer number (2565456693120).

Almost surely, 2121012110201200 is an apocalyptic number.

121012110201200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121012110201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153927401587200).

121012110201200 is an abundant number, since it is smaller than the sum of its proper divisors (186842692973200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121012110201200 is a wasteful number, since it uses less digits than its factorization.

121012110201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234275 (or 1234264 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121012110201200 its reverse (2102011210121), we get a palindrome (123114121411321).

The spelling of 121012110201200 in words is "one hundred twenty-one trillion, twelve billion, one hundred ten million, two hundred one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 17 20 25 34 40 50 68 80 85 100 136 170 200 272 340 400 425 680 850 1360 1700 3400 6800 14591 29182 58364 72955 116728 145910 233456 248047 291820 364775 496094 583640 729550 992188 1167280 1219649 1240235 1459100 1984376 2439298 2480470 2918200 3968752 4878596 4960940 5836400 6098245 6201175 9757192 9921880 12196490 12402350 19514384 19843760 20734033 24392980 24804700 30491225 41468066 48785960 49609400 60982450 82936132 97571920 99218800 103670165 121964900 165872264 207340330 243929800 331744528 414680660 487859600 518350825 829361320 1036701650 1658722640 2073403300 4146806600 8293613200 17795898559 35591797118 71183594236 88979492795 142367188472 177958985590 284734376944 302530275503 355917971180 444897463975 605060551006 711835942360 889794927950 1210121102012 1423671884720 1512651377515 1779589855900 2420242204024 3025302755030 3559179711800 4840484408048 6050605510060 7118359423600 7563256887575 12101211020120 15126513775150 24202422040240 30253027550300 60506055100600 121012110201200