220561042 has 8 divisors (see below), whose sum is σ = 356290956. Its totient is φ = 101797392.

The previous prime is 220561039. The next prime is 220561051. The reversal of 220561042 is 240165022.

It can be written as a sum of positive squares in 2 ways, for example, as 210569121 + 9991921 = 14511^2 + 3161^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 4241533 + ... + 4241584.

Almost surely, 2^220561042 is an apocalyptic number.

220561042 is a deficient number, since it is larger than the sum of its proper divisors (135729914).

220561042 is a wasteful number, since it uses less digits than its factorization.

220561042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8483132.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 220561042 is about 14851.2976537406. The cubic root of 220561042 is about 604.1938054006.

The spelling of 220561042 in words is "two hundred twenty million, five hundred sixty-one thousand, forty-two".