2231220322130 has 32 divisors (see below), whose sum is σ = 4082171121648. Its totient is φ = 877828089600.

The previous prime is 2231220322109. The next prime is 2231220322139. The reversal of 2231220322130 is 312230221322.

It can be written as a sum of positive squares in 8 ways, for example, as 533690152681 + 1697530169449 = 730541^2 + 1302893^2 .

It is a super-3 number, since 3×2231220322130³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231220322096 and 2231220322105.

It is not an unprimeable number, because it can be changed into a prime (2231220322139) 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, 34628624 + ... + 34692996.

Almost surely, 2^{2231220322130} is an apocalyptic number.

2231220322130 is a deficient number, since it is larger than the sum of its proper divisors (1850950799518).

2231220322130 is a wasteful number, since it uses less digits than its factorization.

2231220322130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121262.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 2231220322130 its reverse (312230221322), we get a palindrome (2543450543452).

The spelling of 2231220322130 in words is "two trillion, two hundred thirty-one billion, two hundred twenty million, three hundred twenty-two thousand, one hundred thirty".