12440314112121 has 60 divisors (see below), whose sum is σ = 21828018894528. Its totient is φ = 6916622086368.

The previous prime is 12440314112081. The next prime is 12440314112167. The reversal of 12440314112121 is 12121141304421.

12440314112121 is a `hidden beast` number, since 1 + 2 + 4 + 4 + 0 + 31 + 411 + 212 + 1 = 666.

It is not a de Polignac number, because 12440314112121 - 2¹⁰ = 12440314111097 is a prime.

It is a super-2 number, since 2×12440314112121² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12440314112221) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 7237141 + ... + 8789586.

Almost surely, 2^{12440314112121} is an apocalyptic number.

It is an amenable number.

12440314112121 is a deficient number, since it is larger than the sum of its proper divisors (9387704782407).

12440314112121 is an equidigital number, since it uses as much as digits as its factorization.

12440314112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16026820 (or 16026774 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 12440314112121 its reverse (12121141304421), we get a palindrome (24561455416542).

The spelling of 12440314112121 in words is "twelve trillion, four hundred forty billion, three hundred fourteen million, one hundred twelve thousand, one hundred twenty-one".