20100021112 has 16 divisors (see below), whose sum is σ = 39671094600. Its totient is φ = 9521062560.

The previous prime is 20100021059. The next prime is 20100021157. The reversal of 20100021112 is 21112000102.

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, 66118339 + ... + 66118642.

Almost surely, 2^20100021112 is an apocalyptic number.

It is an amenable number.

20100021112 is a deficient number, since it is larger than the sum of its proper divisors (19571073488).

20100021112 is a wasteful number, since it uses less digits than its factorization.

20100021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132237006 (or 132237002 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20100021112 its reverse (21112000102), we get a palindrome (41212021214).

The spelling of 20100021112 in words is "twenty billion, one hundred million, twenty-one thousand, one hundred twelve".