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120212112120 = 23353597193881
BaseRepresentation
bin110111111110100110…
…0110100001011111000
3102111021210022000121220
41233331030310023320
53432143300041440
6131120310432040
711453653044042
oct1577514641370
9374253260556
10120212112120
1146a886700a1
121b36a962620
13b44a1226b9
145b6559ca92
1531d89038d0
hex1bfd3342f8

120212112120 has 128 divisors (see below), whose sum is σ = 362237184000. Its totient is φ = 31914583040.

The previous prime is 120212112089. The next prime is 120212112157. The reversal of 120212112120 is 21211212021.

120212112120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 120212112120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30972580 + ... + 30976460.

It is an arithmetic number, because the mean of its divisors is an integer number (2829978000).

Almost surely, 2120212112120 is an apocalyptic number.

120212112120 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 120212112120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181118592000).

120212112120 is an abundant number, since it is smaller than the sum of its proper divisors (242025071880).

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

120212112120 is a wasteful number, since it uses less digits than its factorization.

120212112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4973 (or 4969 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 120212112120 its reverse (21211212021), we get a palindrome (141423324141).

Subtracting from 120212112120 its reverse (21211212021), we obtain a palindrome (99000900099).

The spelling of 120212112120 in words is "one hundred twenty billion, two hundred twelve million, one hundred twelve thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 359 718 719 1077 1436 1438 1795 2154 2157 2872 2876 3590 3595 3881 4308 4314 5385 5752 7180 7190 7762 8616 8628 10770 10785 11643 14360 14380 15524 17256 19405 21540 21570 23286 28760 31048 38810 43080 43140 46572 58215 77620 86280 93144 116430 155240 232860 258121 465720 516242 774363 1032484 1290605 1393279 1548726 2064968 2581210 2786558 2790439 3097452 3871815 4179837 5162420 5573116 5580878 6194904 6966395 7743630 8359674 8371317 10324840 11146232 11161756 13932790 13952195 15487260 16719348 16742634 20899185 22323512 27865580 27904390 30974520 33438696 33485268 41798370 41856585 55731160 55808780 66970536 83596740 83713170 111617560 167193480 167426340 334852680 1001767601 2003535202 3005302803 4007070404 5008838005 6010605606 8014140808 10017676010 12021211212 15026514015 20035352020 24042422424 30053028030 40070704040 60106056060 120212112120