220901122 has 16 divisors (see below), whose sum is σ = 357755832. Its totient is φ = 101692800.

The previous prime is 220901117. The next prime is 220901171. The reversal of 220901122 is 221109022.

It can be written as a sum of positive squares in 4 ways, for example, as 138980521 + 81920601 = 11789^2 + 9051^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220901122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379 + ... + 21022.

Almost surely, 2^220901122 is an apocalyptic number.

220901122 is a deficient number, since it is larger than the sum of its proper divisors (136854710).

220901122 is a wasteful number, since it uses less digits than its factorization.

220901122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21813.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 220901122 is about 14862.7427482279. The cubic root of 220901122 is about 604.5041786074.

The spelling of 220901122 in words is "two hundred twenty million, nine hundred one thousand, one hundred twenty-two".