2102222111112 has 24 divisors (see below), whose sum is σ = 5693518217790. Its totient is φ = 700740703680.

The previous prime is 2102222111089. The next prime is 2102222111123. The reversal of 2102222111112 is 2111112222012.

2102222111112 is a `hidden beast` number, since 210 + 222 + 211 + 11 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1269394302276 + 832827808836 = 1126674^2 + 912594^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14598764589 + ... + 14598764732.

Almost surely, 2^{2102222111112} is an apocalyptic number.

It is an amenable number.

2102222111112 is an abundant number, since it is smaller than the sum of its proper divisors (3591296106678).

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

2102222111112 is a wasteful number, since it uses less digits than its factorization.

2102222111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29197529333 (or 29197529326 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2102222111112 its reverse (2111112222012), we get a palindrome (4213334333124).

The spelling of 2102222111112 in words is "two trillion, one hundred two billion, two hundred twenty-two million, one hundred eleven thousand, one hundred twelve".