20112112210012 has 12 divisors (see below), whose sum is σ = 35223758002440. Its totient is φ = 10048181352176.

The previous prime is 20112112209979. The next prime is 20112112210033. The reversal of 20112112210012 is 21001221121102.

It is a super-2 number, since 2×20112112210012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 1968682462 + ... + 1968692677.

It is an arithmetic number, because the mean of its divisors is an integer number (2935313166870).

Almost surely, 2^{20112112210012} is an apocalyptic number.

It is an amenable number.

20112112210012 is a deficient number, since it is larger than the sum of its proper divisors (15111645792428).

20112112210012 is a wasteful number, since it uses less digits than its factorization.

20112112210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3937376420 (or 3937376418 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20112112210012 its reverse (21001221121102), we get a palindrome (41113333331114).

The spelling of 20112112210012 in words is "twenty trillion, one hundred twelve billion, one hundred twelve million, two hundred ten thousand, twelve".