12124532455425 has 144 divisors (see below), whose sum is σ = 24181702272000. Its totient is φ = 5766782860800.

The previous prime is 12124532455423. The next prime is 12124532455439. The reversal of 12124532455425 is 52455423542121.

12124532455425 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 4 + 53 + 24 + 554 + 25 = 666.

It is not a de Polignac number, because 12124532455425 - 2¹ = 12124532455423 is a prime.

It is a super-2 number, since 2×12124532455425² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (12124532455423) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 54202711 + ... + 54425939.

It is an arithmetic number, because the mean of its divisors is an integer number (167928488000).

Almost surely, 2^{12124532455425} is an apocalyptic number.

12124532455425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12124532455425 is a deficient number, since it is larger than the sum of its proper divisors (12057169816575).

12124532455425 is a wasteful number, since it uses less digits than its factorization.

12124532455425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223888 (or 223880 counting only the distinct ones).

The product of its digits is 1920000, while the sum is 45.

Adding to 12124532455425 its reverse (52455423542121), we get a palindrome (64579955997546).

The spelling of 12124532455425 in words is "twelve trillion, one hundred twenty-four billion, five hundred thirty-two million, four hundred fifty-five thousand, four hundred twenty-five".