22122302220 has 72 divisors (see below), whose sum is σ = 68917967664. Its totient is φ = 5739838848.

The previous prime is 22122302197. The next prime is 22122302233. The reversal of 22122302220 is 2220322122.

22122302220 is a `hidden beast` number, since 2 + 212 + 230 + 2 + 220 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 22122302193 and 22122302202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1654174 + ... + 1667493.

Almost surely, 2^22122302220 is an apocalyptic number.

22122302220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122302220 is an abundant number, since it is smaller than the sum of its proper divisors (46795665444).

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

22122302220 is a wasteful number, since it uses less digits than its factorization.

22122302220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3321719 (or 3321714 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22122302220 its reverse (2220322122), we get a palindrome (24342624342).

The spelling of 22122302220 in words is "twenty-two billion, one hundred twenty-two million, three hundred two thousand, two hundred twenty".