20101212021112 has 32 divisors (see below), whose sum is σ = 39993383873520. Its totient is φ = 9438874570240.

The previous prime is 20101212021109. The next prime is 20101212021139. The reversal of 20101212021112 is 21112021210102.

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, 160244278 + ... + 160369669.

Almost surely, 2^{20101212021112} is an apocalyptic number.

It is an amenable number.

20101212021112 is a deficient number, since it is larger than the sum of its proper divisors (19892171852408).

20101212021112 is a wasteful number, since it uses less digits than its factorization.

20101212021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320614431 (or 320614427 counting only the distinct ones).

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

Adding to 20101212021112 its reverse (21112021210102), we get a palindrome (41213233231214).

The spelling of 20101212021112 in words is "twenty trillion, one hundred one billion, two hundred twelve million, twenty-one thousand, one hundred twelve".