222221202101212 has 12 divisors (see below), whose sum is σ = 388887379498576. Its totient is φ = 111110522244480.

The previous prime is 222221202101207. The next prime is 222221202101219. The reversal of 222221202101212 is 212101202122222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222221202101219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13111989 + ... + 24826732.

Almost surely, 2^{222221202101212} is an apocalyptic number.

It is an amenable number.

222221202101212 is a deficient number, since it is larger than the sum of its proper divisors (166666177397364).

222221202101212 is a wasteful number, since it uses less digits than its factorization.

222221202101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39403068 (or 39403066 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222221202101212 its reverse (212101202122222), we get a palindrome (434322404223434).

The spelling of 222221202101212 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two hundred two million, one hundred one thousand, two hundred twelve".