12111202011102 has 64 divisors (see below), whose sum is σ = 25048109758464. Its totient is φ = 3899915061120.

The previous prime is 12111202011079. The next prime is 12111202011163. The reversal of 12111202011102 is 20111020211121.

It is a happy number.

It is a super-2 number, since 2×12111202011102² (a number of 27 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 31 ways as a sum of consecutive naturals, for example, 493979748 + ... + 494004264.

It is an arithmetic number, because the mean of its divisors is an integer number (391376714976).

Almost surely, 2^{12111202011102} is an apocalyptic number.

12111202011102 is an abundant number, since it is smaller than the sum of its proper divisors (12936907747362).

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

12111202011102 is a wasteful number, since it uses less digits than its factorization.

12111202011102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29153.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12111202011102 its reverse (20111020211121), we get a palindrome (32222222222223).

The spelling of 12111202011102 in words is "twelve trillion, one hundred eleven billion, two hundred two million, eleven thousand, one hundred two".