22212220001112 has 128 divisors (see below), whose sum is σ = 67582819800000. Its totient is φ = 6728245106688.

The previous prime is 22212220001099. The next prime is 22212220001161. The reversal of 22212220001112 is 21110002221222.

It is a happy number.

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

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, 104187987 + ... + 104400962.

Almost surely, 2^{22212220001112} is an apocalyptic number.

It is an amenable number.

22212220001112 is an abundant number, since it is smaller than the sum of its proper divisors (45370599798888).

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

22212220001112 is a wasteful number, since it uses less digits than its factorization.

22212220001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208589010 (or 208589000 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22212220001112 its reverse (21110002221222), we get a palindrome (43322222222334).

The spelling of 22212220001112 in words is "twenty-two trillion, two hundred twelve billion, two hundred twenty million, one thousand, one hundred twelve".