12111202112 has 14 divisors (see below), whose sum is σ = 24033166818. Its totient is φ = 6055601024.

The previous prime is 12111202087. The next prime is 12111202127. The reversal of 12111202112 is 21120211121.

It can be written as a sum of positive squares in only one way, i.e., 7888281856 + 4222920256 = 88816^2 + 64984^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94618703 + ... + 94618830.

Almost surely, 2^12111202112 is an apocalyptic number.

It is an amenable number.

12111202112 is a deficient number, since it is larger than the sum of its proper divisors (11921964706).

12111202112 is an equidigital number, since it uses as much as digits as its factorization.

12111202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189237545 (or 189237535 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12111202112 its reverse (21120211121), we get a palindrome (33231413233).

Subtracting 12111202112 from its reverse (21120211121), we obtain a palindrome (9009009009).

The spelling of 12111202112 in words is "twelve billion, one hundred eleven million, two hundred two thousand, one hundred twelve".