22000222212 has 48 divisors (see below), whose sum is σ = 51933571200. Its totient is φ = 7247806720.

The previous prime is 22000222187. The next prime is 22000222213. The reversal of 22000222212 is 21222200022.

It is a junction number, because it is equal to n+sod(n) for n = 22000222191 and 22000222200.

It is not an unprimeable number, because it can be changed into a prime (22000222213) 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, 4514137 + ... + 4519007.

It is an arithmetic number, because the mean of its divisors is an integer number (1081949400).

Almost surely, 2^22000222212 is an apocalyptic number.

It is an amenable number.

22000222212 is an abundant number, since it is smaller than the sum of its proper divisors (29933348988).

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

22000222212 is a wasteful number, since it uses less digits than its factorization.

22000222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9196 (or 9194 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 22000222212 its reverse (21222200022), we get a palindrome (43222422234).

The spelling of 22000222212 in words is "twenty-two billion, two hundred twenty-two thousand, two hundred twelve".