12201111202112 has 56 divisors (see below), whose sum is σ = 28873437092736. Its totient is φ = 5001697755648.

The previous prime is 12201111202069. The next prime is 12201111202117. The reversal of 12201111202112 is 21120211110221.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×12201111202112² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201111202117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592046723 + ... + 592067330.

Almost surely, 2^{12201111202112} is an apocalyptic number.

It is an amenable number.

12201111202112 is an abundant number, since it is smaller than the sum of its proper divisors (16672325890624).

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

12201111202112 is a wasteful number, since it uses less digits than its factorization.

12201111202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184114095 (or 1184114085 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12201111202112 its reverse (21120211110221), we get a palindrome (33321322312333).

The spelling of 12201111202112 in words is "twelve trillion, two hundred one billion, one hundred eleven million, two hundred two thousand, one hundred twelve".