20112212210012 has 24 divisors (see below), whose sum is σ = 37923978545376. Its totient is φ = 9277614013248.

The previous prime is 20112212209933. The next prime is 20112212210029. The reversal of 20112212210012 is 21001221221102.

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, 102932048 + ... + 103127255.

It is an arithmetic number, because the mean of its divisors is an integer number (1580165772724).

Almost surely, 2^{20112212210012} is an apocalyptic number.

It is an amenable number.

20112212210012 is a deficient number, since it is larger than the sum of its proper divisors (17811766335364).

20112212210012 is a wasteful number, since it uses less digits than its factorization.

20112212210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206061197 (or 206061195 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20112212210012 its reverse (21001221221102), we get a palindrome (41113433431114).

The spelling of 20112212210012 in words is "twenty trillion, one hundred twelve billion, two hundred twelve million, two hundred ten thousand, twelve".