20220220332 has 108 divisors (see below), whose sum is σ = 56878086720. Its totient is φ = 6020775360.

The previous prime is 20220220309. The next prime is 20220220351. The reversal of 20220220332 is 23302202202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 427269 + ... + 472227.

Almost surely, 2^20220220332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20220220332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28439043360).

20220220332 is an abundant number, since it is smaller than the sum of its proper divisors (36657866388).

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

20220220332 is a wasteful number, since it uses less digits than its factorization.

20220220332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45044 (or 45008 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 20220220332 its reverse (23302202202), we get a palindrome (43522422534).

The spelling of 20220220332 in words is "twenty billion, two hundred twenty million, two hundred twenty thousand, three hundred thirty-two".