21250614412 has 24 divisors (see below), whose sum is σ = 37395809360. Its totient is φ = 10566262080.

The previous prime is 21250614389. The next prime is 21250614433. The reversal of 21250614412 is 21441605212.

It is a super-2 number, since 2×21250614412² (a number of 21 digits) contains 22 as substring.

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, 505414 + ... + 545842.

Almost surely, 2^21250614412 is an apocalyptic number.

It is an amenable number.

21250614412 is a deficient number, since it is larger than the sum of its proper divisors (16145194948).

21250614412 is a wasteful number, since it uses less digits than its factorization.

21250614412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41161 (or 41159 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 21250614412 in words is "twenty-one billion, two hundred fifty million, six hundred fourteen thousand, four hundred twelve".