122144254425 has 24 divisors (see below), whose sum is σ = 224383520480. Its totient is φ = 65143602000.

The previous prime is 122144254403. The next prime is 122144254439. The reversal of 122144254425 is 524452441221.

122144254425 is a `hidden beast` number, since 1 + 221 + 4 + 4 + 2 + 5 + 4 + 425 = 666.

It is not a de Polignac number, because 122144254425 - 2¹⁵ = 122144221657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122144254425.

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, 90476551 + ... + 90477900.

Almost surely, 2^122144254425 is an apocalyptic number.

122144254425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122144254425 is a deficient number, since it is larger than the sum of its proper divisors (102239266055).

122144254425 is a wasteful number, since it uses less digits than its factorization.

122144254425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180954470 (or 180954459 counting only the distinct ones).

The product of its digits is 102400, while the sum is 36.

Adding to 122144254425 its reverse (524452441221), we get a palindrome (646596695646).

The spelling of 122144254425 in words is "one hundred twenty-two billion, one hundred forty-four million, two hundred fifty-four thousand, four hundred twenty-five".