20212211222212 has 12 divisors (see below), whose sum is σ = 35371401312016. Its totient is φ = 10106096561640.

The previous prime is 20212211222209. The next prime is 20212211222237. The reversal of 20212211222212 is 21222211221202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6768787 + ... + 9286597.

Almost surely, 2^{20212211222212} is an apocalyptic number.

It is an amenable number.

20212211222212 is a deficient number, since it is larger than the sum of its proper divisors (15159190089804).

20212211222212 is a wasteful number, since it uses less digits than its factorization.

20212211222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4524738 (or 4524736 counting only the distinct ones).

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

Adding to 20212211222212 its reverse (21222211221202), we get a palindrome (41434422443414).

The spelling of 20212211222212 in words is "twenty trillion, two hundred twelve billion, two hundred eleven million, two hundred twenty-two thousand, two hundred twelve".