12220122211112 has 8 divisors (see below), whose sum is σ = 22912729145850. Its totient is φ = 6110061105552.

The previous prime is 12220122211009. The next prime is 12220122211153. The reversal of 12220122211112 is 21111222102221.

It can be written as a sum of positive squares in only one way, i.e., 12198576081316 + 21546129796 = 3492646^2 + 146786^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 763757638187 + ... + 763757638202.

Almost surely, 2^{12220122211112} is an apocalyptic number.

It is an amenable number.

12220122211112 is a deficient number, since it is larger than the sum of its proper divisors (10692606934738).

12220122211112 is a wasteful number, since it uses less digits than its factorization.

12220122211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527515276395 (or 1527515276391 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12220122211112 its reverse (21111222102221), we get a palindrome (33331344313333).

The spelling of 12220122211112 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-two million, two hundred eleven thousand, one hundred twelve".