20012112112 has 20 divisors (see below), whose sum is σ = 38783649880. Its totient is φ = 10003428288.

The previous prime is 20012112101. The next prime is 20012112149. The reversal of 20012112112 is 21121121002.

It is a junction number, because it is equal to n+sod(n) for n = 20012112092 and 20012112101.

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, 100662 + ... + 223957.

It is an arithmetic number, because the mean of its divisors is an integer number (1939182494).

Almost surely, 2^20012112112 is an apocalyptic number.

It is an amenable number.

20012112112 is a deficient number, since it is larger than the sum of its proper divisors (18771537768).

20012112112 is a wasteful number, since it uses less digits than its factorization.

20012112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328480 (or 328474 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20012112112 its reverse (21121121002), we get a palindrome (41133233114).

The spelling of 20012112112 in words is "twenty billion, twelve million, one hundred twelve thousand, one hundred twelve".