220020220131 has 32 divisors (see below), whose sum is σ = 295677545280. Its totient is φ = 145528233984.

The previous prime is 220020220111. The next prime is 220020220141. The reversal of 220020220131 is 131022020022.

It is a happy number.

It is not a de Polignac number, because 220020220131 - 2¹⁵ = 220020187363 is a prime.

It is a super-2 number, since 2×220020220131² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220020220131.

It is not an unprimeable number, because it can be changed into a prime (220020220111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 326924211 + ... + 326924883.

It is an arithmetic number, because the mean of its divisors is an integer number (9239923290).

Almost surely, 2^220020220131 is an apocalyptic number.

220020220131 is a deficient number, since it is larger than the sum of its proper divisors (75657325149).

220020220131 is a wasteful number, since it uses less digits than its factorization.

220020220131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135.

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

Adding to 220020220131 its reverse (131022020022), we get a palindrome (351042240153).

The spelling of 220020220131 in words is "two hundred twenty billion, twenty million, two hundred twenty thousand, one hundred thirty-one".