22220717872 has 20 divisors (see below), whose sum is σ = 43337762416. Its totient is φ = 11036779200.

The previous prime is 22220717861. The next prime is 22220717947. The reversal of 22220717872 is 27871702222.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4596243 + ... + 4601074.

Almost surely, 2^22220717872 is an apocalyptic number.

It is an amenable number.

22220717872 is a deficient number, since it is larger than the sum of its proper divisors (21117044544).

22220717872 is a wasteful number, since it uses less digits than its factorization.

22220717872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9197476 (or 9197470 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 40.

The spelling of 22220717872 in words is "twenty-two billion, two hundred twenty million, seven hundred seventeen thousand, eight hundred seventy-two".