21140604112 has 40 divisors (see below), whose sum is σ = 41388366600. Its totient is φ = 10459852800.

The previous prime is 21140604097. The next prime is 21140604127.

21140604112 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (21140604097) and next prime (21140604127).

It can be written as a sum of positive squares in 4 ways, for example, as 512750736 + 20627853376 = 22644^2 + 143624^2 .

It is a super-2 number, since 2×21140604112² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5571688 + ... + 5575480.

It is an arithmetic number, because the mean of its divisors is an integer number (1034709165).

Almost surely, 2^21140604112 is an apocalyptic number.

It is an amenable number.

21140604112 is a deficient number, since it is larger than the sum of its proper divisors (20247762488).

21140604112 is a wasteful number, since it uses less digits than its factorization.

21140604112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7351 (or 7345 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The spelling of 21140604112 in words is "twenty-one billion, one hundred forty million, six hundred four thousand, one hundred twelve".