220020122231 has 16 divisors (see below), whose sum is σ = 274608004608. Its totient is φ = 171629992800.

The previous prime is 220020122191. The next prime is 220020122317. The reversal of 220020122231 is 132221020022.

It is not a de Polignac number, because 220020122231 - 2²² = 220015927927 is a prime.

It is a super-2 number, since 2×220020122231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220020122131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17020325 + ... + 17033246.

It is an arithmetic number, because the mean of its divisors is an integer number (17163000288).

Almost surely, 2^220020122231 is an apocalyptic number.

220020122231 is a deficient number, since it is larger than the sum of its proper divisors (54587882377).

220020122231 is a wasteful number, since it uses less digits than its factorization.

220020122231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34053662.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 220020122231 its reverse (132221020022), we get a palindrome (352241142253).

The spelling of 220020122231 in words is "two hundred twenty billion, twenty million, one hundred twenty-two thousand, two hundred thirty-one".