2220131129 has 2 divisors, whose sum is σ = 2220131130. Its totient is φ = 2220131128.

The previous prime is 2220131117. The next prime is 2220131161. The reversal of 2220131129 is 9211310222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1476096400 + 744034729 = 38420^2 + 27277^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220131129 - 2¹² = 2220127033 is a prime.

It is not a weakly prime, because it can be changed into another prime (2220131429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110065564 + 1110065565.

It is an arithmetic number, because the mean of its divisors is an integer number (1110065565).

Almost surely, 2^2220131129 is an apocalyptic number.

It is an amenable number.

2220131129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220131129 is an equidigital number, since it uses as much as digits as its factorization.

2220131129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2220131129 is about 47118.2674660264. The cubic root of 2220131129 is about 1304.5464342747.

The spelling of 2220131129 in words is "two billion, two hundred twenty million, one hundred thirty-one thousand, one hundred twenty-nine".