220042131 has 4 divisors (see below), whose sum is σ = 293389512. Its totient is φ = 146694752.

The previous prime is 220042117. The next prime is 220042133. The reversal of 220042131 is 131240022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220042131 - 2⁵ = 220042099 is a prime.

It is a super-2 number, since 2×220042131² = 96837078830042322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220042131.

It is not an unprimeable number, because it can be changed into a prime (220042133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36673686 + ... + 36673691.

It is an arithmetic number, because the mean of its divisors is an integer number (73347378).

Almost surely, 2^220042131 is an apocalyptic number.

220042131 is a deficient number, since it is larger than the sum of its proper divisors (73347381).

220042131 is an equidigital number, since it uses as much as digits as its factorization.

220042131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73347380.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 220042131 is about 14833.8171419227. The cubic root of 220042131 is about 603.7196071100.

Adding to 220042131 its reverse (131240022), we get a palindrome (351282153).

The spelling of 220042131 in words is "two hundred twenty million, forty-two thousand, one hundred thirty-one".