21104094712 has 32 divisors (see below), whose sum is σ = 41906769120. Its totient is φ = 9929221120.

The previous prime is 21104094691. The next prime is 21104094731. The reversal of 21104094712 is 21749040112.

It is a super-2 number, since 2×21104094712² (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, 755637 + ... + 783067.

It is an arithmetic number, because the mean of its divisors is an integer number (1309586535).

Almost surely, 2^21104094712 is an apocalyptic number.

It is an amenable number.

21104094712 is a deficient number, since it is larger than the sum of its proper divisors (20802674408).

21104094712 is a wasteful number, since it uses less digits than its factorization.

21104094712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33111 (or 33107 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 21104094712 in words is "twenty-one billion, one hundred four million, ninety-four thousand, seven hundred twelve".