20012232112 has 40 divisors (see below), whose sum is σ = 39223016352. Its totient is φ = 9890496000.

The previous prime is 20012232089. The next prime is 20012232113. The reversal of 20012232112 is 21123221002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (20012232113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 987037 + ... + 1007107.

Almost surely, 2^20012232112 is an apocalyptic number.

It is an amenable number.

20012232112 is a deficient number, since it is larger than the sum of its proper divisors (19210784240).

20012232112 is a wasteful number, since it uses less digits than its factorization.

20012232112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20797 (or 20791 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20012232112 its reverse (21123221002), we get a palindrome (41135453114).

The spelling of 20012232112 in words is "twenty billion, twelve million, two hundred thirty-two thousand, one hundred twelve".