21330502244 has 24 divisors (see below), whose sum is σ = 37447038720. Its totient is φ = 10631383136.

The previous prime is 21330502187. The next prime is 21330502267. The reversal of 21330502244 is 44220503312.

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, 3524429 + ... + 3530475.

It is an arithmetic number, because the mean of its divisors is an integer number (1560293280).

Almost surely, 2^21330502244 is an apocalyptic number.

It is an amenable number.

21330502244 is a deficient number, since it is larger than the sum of its proper divisors (16116536476).

21330502244 is a wasteful number, since it uses less digits than its factorization.

21330502244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8707 (or 8705 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The spelling of 21330502244 in words is "twenty-one billion, three hundred thirty million, five hundred two thousand, two hundred forty-four".