12055022100 has 144 divisors (see below), whose sum is σ = 42277919040. Its totient is φ = 2922422400.

The previous prime is 12055022051. The next prime is 12055022113. The reversal of 12055022100 is 122055021.

12055022100 is a `hidden beast` number, since 12 + 0 + 550 + 2 + 2 + 100 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 173247 + ... + 232646.

It is an arithmetic number, because the mean of its divisors is an integer number (293596660).

Almost surely, 2^12055022100 is an apocalyptic number.

12055022100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12055022100 is an abundant number, since it is smaller than the sum of its proper divisors (30222896940).

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

12055022100 is a wasteful number, since it uses less digits than its factorization.

12055022100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405927 (or 405914 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

Adding to 12055022100 its reverse (122055021), we get a palindrome (12177077121).

The spelling of 12055022100 in words is "twelve billion, fifty-five million, twenty-two thousand, one hundred".