220576122 has 160 divisors (see below), whose sum is σ = 578494224. Its totient is φ = 62208000.

The previous prime is 220576091. The next prime is 220576163. The reversal of 220576122 is 221675022.

It can be written as a sum of positive squares in 8 ways, for example, as 97831881 + 122744241 = 9891^2 + 11079^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2183872 + ... + 2183972.

Almost surely, 2^220576122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220576122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289247112).

220576122 is an abundant number, since it is smaller than the sum of its proper divisors (357918102).

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

220576122 is a wasteful number, since it uses less digits than its factorization.

220576122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 220576122 is about 14851.8053448057. The cubic root of 220576122 is about 604.2075748842.

The spelling of 220576122 in words is "two hundred twenty million, five hundred seventy-six thousand, one hundred twenty-two".