122243451325521 has 32 divisors (see below), whose sum is σ = 173129051566080. Its totient is φ = 76562812174464.

The previous prime is 122243451325519. The next prime is 122243451325553. The reversal of 122243451325521 is 125523154342221.

It is not a de Polignac number, because 122243451325521 - 2¹ = 122243451325519 is a prime.

It is a super-2 number, since 2×122243451325521² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122243451325511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49568331 + ... + 51976016.

It is an arithmetic number, because the mean of its divisors is an integer number (5410282861440).

Almost surely, 2^{122243451325521} is an apocalyptic number.

It is an amenable number.

122243451325521 is a deficient number, since it is larger than the sum of its proper divisors (50885600240559).

122243451325521 is a wasteful number, since it uses less digits than its factorization.

122243451325521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101544685.

The product of its digits is 576000, while the sum is 42.

The spelling of 122243451325521 in words is "one hundred twenty-two trillion, two hundred forty-three billion, four hundred fifty-one million, three hundred twenty-five thousand, five hundred twenty-one".