20212112004 has 48 divisors (see below), whose sum is σ = 54011596800. Its totient is φ = 5762821536.

The previous prime is 20212111963. The next prime is 20212112027. The reversal of 20212112004 is 40021121202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210934 + ... + 291405.

It is an arithmetic number, because the mean of its divisors is an integer number (1125241600).

Almost surely, 2^20212112004 is an apocalyptic number.

It is an amenable number.

20212112004 is an abundant number, since it is smaller than the sum of its proper divisors (33799484796).

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

20212112004 is a wasteful number, since it uses less digits than its factorization.

20212112004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502832 (or 502830 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20212112004 its reverse (40021121202), we get a palindrome (60233233206).

The spelling of 20212112004 in words is "twenty billion, two hundred twelve million, one hundred twelve thousand, four".