12231104112520 has 16 divisors (see below), whose sum is σ = 27519984253260. Its totient is φ = 4892441644992.

The previous prime is 12231104112499. The next prime is 12231104112527. The reversal of 12231104112520 is 2521140113221.

It can be written as a sum of positive squares in 2 ways, for example, as 12050881787844 + 180222324676 = 3471438^2 + 424526^2 .

It is a super-2 number, since 2×12231104112520² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12231104112527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152888801367 + ... + 152888801446.

Almost surely, 2^{12231104112520} is an apocalyptic number.

12231104112520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12231104112520 is an abundant number, since it is smaller than the sum of its proper divisors (15288880140740).

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

12231104112520 is a wasteful number, since it uses less digits than its factorization.

12231104112520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305777602824 (or 305777602820 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 12231104112520 its reverse (2521140113221), we get a palindrome (14752244225741).

The spelling of 12231104112520 in words is "twelve trillion, two hundred thirty-one billion, one hundred four million, one hundred twelve thousand, five hundred twenty".