220020097970 has 16 divisors (see below), whose sum is σ = 409692596760. Its totient is φ = 84973279104.

The previous prime is 220020097937. The next prime is 220020097987. The reversal of 220020097970 is 79790020022.

It is a Cunningham number, because it is equal to 469063²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 115373670889 + 104646427081 = 339667^2 + 323491^2 .

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, 379344707 + ... + 379345286.

Almost surely, 2^220020097970 is an apocalyptic number.

220020097970 is a deficient number, since it is larger than the sum of its proper divisors (189672498790).

220020097970 is a wasteful number, since it uses less digits than its factorization.

220020097970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758690029.

The product of its (nonzero) digits is 31752, while the sum is 38.

The spelling of 220020097970 in words is "two hundred twenty billion, twenty million, ninety-seven thousand, nine hundred seventy".