22220112212112 has 80 divisors (see below), whose sum is σ = 57950146096128. Its totient is φ = 7336302812160.

The previous prime is 22220112212099. The next prime is 22220112212117. The reversal of 22220112212112 is 21121221102222.

It is not an unprimeable number, because it can be changed into a prime (22220112212117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3064843 + ... + 7337130.

Almost surely, 2^{22220112212112} is an apocalyptic number.

It is an amenable number.

22220112212112 is an abundant number, since it is smaller than the sum of its proper divisors (35730033884016).

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

22220112212112 is a wasteful number, since it uses less digits than its factorization.

22220112212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10402408 (or 10402402 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22220112212112 its reverse (21121221102222), we get a palindrome (43341333314334).

The spelling of 22220112212112 in words is "twenty-two trillion, two hundred twenty billion, one hundred twelve million, two hundred twelve thousand, one hundred twelve".