22212222122212 has 24 divisors (see below), whose sum is σ = 39058337746400. Its totient is φ = 11052704396160.

The previous prime is 22212222122159. The next prime is 22212222122243. The reversal of 22212222122212 is 21222122221222.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11284243 + ... + 13105669.

Almost surely, 2^{22212222122212} is an apocalyptic number.

It is an amenable number.

22212222122212 is a deficient number, since it is larger than the sum of its proper divisors (16846115624188).

22212222122212 is a wasteful number, since it uses less digits than its factorization.

22212222122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836091 (or 1836089 counting only the distinct ones).

The product of its digits is 2048, while the sum is 25.

Adding to 22212222122212 its reverse (21222122221222), we get a palindrome (43434344343434).

It can be divided in two parts, 2221222 and 2122212, that added together give a palindrome (4343434).

The spelling of 22212222122212 in words is "twenty-two trillion, two hundred twelve billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred twelve".