20100112112 has 20 divisors (see below), whose sum is σ = 41234789376. Its totient is φ = 9458876160.

The previous prime is 20100112079. The next prime is 20100112127. The reversal of 20100112112 is 21121100102.

It is a junction number, because it is equal to n+sod(n) for n = 20100112093 and 20100112102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36948464 + ... + 36949007.

Almost surely, 2^20100112112 is an apocalyptic number.

It is an amenable number.

20100112112 is an abundant number, since it is smaller than the sum of its proper divisors (21134677264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20100112112 is a wasteful number, since it uses less digits than its factorization.

20100112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73897496 (or 73897490 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20100112112 its reverse (21121100102), we get a palindrome (41221212214).

The spelling of 20100112112 in words is "twenty billion, one hundred million, one hundred twelve thousand, one hundred twelve".