202222221212 has 48 divisors (see below), whose sum is σ = 388813824000. Its totient is φ = 91264786560.

The previous prime is 202222221211. The next prime is 202222221239. The reversal of 202222221212 is 212122222202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202222221211) 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, 7509989 + ... + 7536867.

It is an arithmetic number, because the mean of its divisors is an integer number (8100288000).

Almost surely, 2^202222221212 is an apocalyptic number.

202222221212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

202222221212 is a deficient number, since it is larger than the sum of its proper divisors (186591602788).

202222221212 is a wasteful number, since it uses less digits than its factorization.

202222221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28106 (or 28104 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 202222221212 its reverse (212122222202), we get a palindrome (414344443414).

The spelling of 202222221212 in words is "two hundred two billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred twelve".