12100241556 has 72 divisors (see below), whose sum is σ = 33640449024. Its totient is φ = 3643928640.

The previous prime is 12100241533. The next prime is 12100241567. The reversal of 12100241556 is 65514200121.

12100241556 is a `hidden beast` number, since 1 + 2 + 100 + 2 + 4 + 1 + 556 = 666.

It is a super-2 number, since 2×12100241556² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 253060 + ... + 297051.

Almost surely, 2^12100241556 is an apocalyptic number.

It is an amenable number.

12100241556 is an abundant number, since it is smaller than the sum of its proper divisors (21540207468).

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

12100241556 is a wasteful number, since it uses less digits than its factorization.

12100241556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550181 (or 550176 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 12100241556 its reverse (65514200121), we get a palindrome (77614441677).

The spelling of 12100241556 in words is "twelve billion, one hundred million, two hundred forty-one thousand, five hundred fifty-six".