12522422422521 has 36 divisors (see below), whose sum is σ = 20078638709220. Its totient is φ = 7514204808000.

The previous prime is 12522422422519. The next prime is 12522422422661.

12522422422521 is a `hidden beast` number, since 1 + 2 + 5 + 2 + 2 + 422 + 4 + 225 + 2 + 1 = 666.

12522422422521 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 7230747890025 + 5291674532496 = 2689005^2 + 2300364^2 .

It is not a de Polignac number, because 12522422422521 - 2¹ = 12522422422519 is a prime.

It is a super-2 number, since 2×12522422422521² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12522422429521) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 56815806 + ... + 57035783.

It is an arithmetic number, because the mean of its divisors is an integer number (557739964145).

Almost surely, 2^{12522422422521} is an apocalyptic number.

12522422422521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12522422422521 is a deficient number, since it is larger than the sum of its proper divisors (7556216286699).

12522422422521 is a wasteful number, since it uses less digits than its factorization.

12522422422521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113851718 (or 113851704 counting only the distinct ones).

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

It can be divided in two parts, 1252242 and 2422521, that added together give a palindrome (3674763).

The spelling of 12522422422521 in words is "twelve trillion, five hundred twenty-two billion, four hundred twenty-two million, four hundred twenty-two thousand, five hundred twenty-one".