220122031 has 4 divisors (see below), whose sum is σ = 225241192. Its totient is φ = 215002872.

The previous prime is 220122017. The next prime is 220122043. The reversal of 220122031 is 130221022.

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 220122031 - 2⁵ = 220121999 is a prime.

It is a super-2 number, since 2×220122031² = 96907417063129922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220122061) 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, 2559516 + ... + 2559601.

It is an arithmetic number, because the mean of its divisors is an integer number (56310298).

Almost surely, 2^220122031 is an apocalyptic number.

220122031 is a deficient number, since it is larger than the sum of its proper divisors (5119161).

220122031 is an equidigital number, since it uses as much as digits as its factorization.

220122031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5119160.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 220122031 is about 14836.5100680719. The cubic root of 220122031 is about 603.7926709350.

Adding to 220122031 its reverse (130221022), we get a palindrome (350343053).

The spelling of 220122031 in words is "two hundred twenty million, one hundred twenty-two thousand, thirty-one".