20100112212212 has 24 divisors (see below), whose sum is σ = 37035336824640. Its totient is φ = 9518839243200.

The previous prime is 20100112212179. The next prime is 20100112212217. The reversal of 20100112212212 is 21221221100102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100112212217) 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, 31158368 + ... + 31796919.

It is an arithmetic number, because the mean of its divisors is an integer number (1543139034360).

Almost surely, 2^{20100112212212} is an apocalyptic number.

It is an amenable number.

20100112212212 is a deficient number, since it is larger than the sum of its proper divisors (16935224612428).

20100112212212 is a wasteful number, since it uses less digits than its factorization.

20100112212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62959511 (or 62959509 counting only the distinct ones).

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

Adding to 20100112212212 its reverse (21221221100102), we get a palindrome (41321333312314).

The spelling of 20100112212212 in words is "twenty trillion, one hundred billion, one hundred twelve million, two hundred twelve thousand, two hundred twelve".