21225985314 has 24 divisors (see below), whose sum is σ = 42831130992. Its totient is φ = 7012689600.

The previous prime is 21225985303. The next prime is 21225985343. The reversal of 21225985314 is 41358952212.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61912 + ... + 215139.

It is an arithmetic number, because the mean of its divisors is an integer number (1784630458).

Almost surely, 2^21225985314 is an apocalyptic number.

21225985314 is an abundant number, since it is smaller than the sum of its proper divisors (21605145678).

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

21225985314 is a wasteful number, since it uses less digits than its factorization.

21225985314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277282 (or 277169 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The spelling of 21225985314 in words is "twenty-one billion, two hundred twenty-five million, nine hundred eighty-five thousand, three hundred fourteen".