2231212323130 has 48 divisors (see below), whose sum is σ = 4832984922120. Its totient is φ = 738608212608.

The previous prime is 2231212323113. The next prime is 2231212323181. The reversal of 2231212323130 is 313232121322.

It can be written as a sum of positive squares in 4 ways, for example, as 2000801763009 + 230410560121 = 1414497^2 + 480011^2 .

It is a super-3 number, since 3×2231212323130³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231212323095 and 2231212323104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78494317 + ... + 78522736.

Almost surely, 2^{2231212323130} is an apocalyptic number.

2231212323130 is an abundant number, since it is smaller than the sum of its proper divisors (2601772598990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2231212323130 is a wasteful number, since it uses less digits than its factorization.

2231212323130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157017103 (or 157017096 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2231212323130 its reverse (313232121322), we get a palindrome (2544444444452).

The spelling of 2231212323130 in words is "two trillion, two hundred thirty-one billion, two hundred twelve million, three hundred twenty-three thousand, one hundred thirty".