222022222212 has 24 divisors (see below), whose sum is σ = 592059259456. Its totient is φ = 63434920608.

The previous prime is 222022222211. The next prime is 222022222229. The reversal of 222022222212 is 212222220222.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (222022222211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1321560763 + ... + 1321560930.

Almost surely, 2^222022222212 is an apocalyptic number.

It is an amenable number.

222022222212 is an abundant number, since it is smaller than the sum of its proper divisors (370037037244).

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

222022222212 is a wasteful number, since it uses less digits than its factorization.

222022222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643121707 (or 2643121705 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 222022222212 its reverse (212222220222), we get a palindrome (434244442434).

The spelling of 222022222212 in words is "two hundred twenty-two billion, twenty-two million, two hundred twenty-two thousand, two hundred twelve".