22222020212 has 24 divisors (see below), whose sum is σ = 44540057856. Its totient is φ = 9503147808.

The previous prime is 22222020187. The next prime is 22222020221. The reversal of 22222020212 is 21202022222.

It is a congruent number.

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, 844103 + ... + 870030.

It is an arithmetic number, because the mean of its divisors is an integer number (1855835744).

Almost surely, 2^22222020212 is an apocalyptic number.

It is an amenable number.

22222020212 is an abundant number, since it is smaller than the sum of its proper divisors (22318037644).

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

22222020212 is a wasteful number, since it uses less digits than its factorization.

22222020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714607 (or 1714605 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 22222020212 its reverse (21202022222), we get a palindrome (43424042434).

The spelling of 22222020212 in words is "twenty-two billion, two hundred twenty-two million, twenty thousand, two hundred twelve".