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12120110200 = 2352112500831
BaseRepresentation
bin10110100100110101…
…00011010001111000
31011021200010101120101
423102122203101320
5144310222011300
65322400005144
7606230144152
oct132232432170
934250111511
1012120110200
11515a539200
1224230007b4
1311b1cc9953
1482d965ad2
154ae098b6a
hex2d26a3478

12120110200 has 72 divisors (see below), whose sum is σ = 30973955040. Its totient is φ = 4407304000.

The previous prime is 12120110183. The next prime is 12120110201. The reversal of 12120110200 is 201102121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120110201) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 226216 + ... + 274615.

It is an arithmetic number, because the mean of its divisors is an integer number (430193820).

Almost surely, 212120110200 is an apocalyptic number.

12120110200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120110200 is an abundant number, since it is smaller than the sum of its proper divisors (18853844840).

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

12120110200 is a wasteful number, since it uses less digits than its factorization.

12120110200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500869 (or 500849 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12120110200 its reverse (201102121), we get a palindrome (12321212321).

The spelling of 12120110200 in words is "twelve billion, one hundred twenty million, one hundred ten thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 121 200 220 242 275 440 484 550 605 968 1100 1210 2200 2420 3025 4840 6050 12100 24200 500831 1001662 2003324 2504155 4006648 5008310 5509141 10016620 11018282 12520775 20033240 22036564 25041550 27545705 44073128 50083100 55091410 60600551 100166200 110182820 121201102 137728525 220365640 242402204 275457050 303002755 484804408 550914100 606005510 1101828200 1212011020 1515013775 2424022040 3030027550 6060055100 12120110200