21119072412 has 48 divisors (see below), whose sum is σ = 50529113600. Its totient is φ = 6863104512.

The previous prime is 21119072389. The next prime is 21119072441. The reversal of 21119072412 is 21427091112.

It is a self number, because there is not a number n which added to its sum of digits gives 21119072412.

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 15 ways as a sum of consecutive naturals, for example, 57412 + ... + 213387.

Almost surely, 2^21119072412 is an apocalyptic number.

It is an amenable number.

21119072412 is an abundant number, since it is smaller than the sum of its proper divisors (29410041188).

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

21119072412 is a wasteful number, since it uses less digits than its factorization.

21119072412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270970 (or 270968 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The spelling of 21119072412 in words is "twenty-one billion, one hundred nineteen million, seventy-two thousand, four hundred twelve".