122631751225 has 12 divisors (see below), whose sum is σ = 161008276284. Its totient is φ = 92334494720.

The previous prime is 122631751211. The next prime is 122631751237. The reversal of 122631751225 is 522157136221.

It can be written as a sum of positive squares in 6 ways, for example, as 4339779129 + 118291972096 = 65877^2 + 343936^2 .

It is not a de Polignac number, because 122631751225 - 2¹³ = 122631743033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144272224 + ... + 144273073.

It is an arithmetic number, because the mean of its divisors is an integer number (13417356357).

Almost surely, 2^122631751225 is an apocalyptic number.

It is an amenable number.

122631751225 is a deficient number, since it is larger than the sum of its proper divisors (38376525059).

122631751225 is a wasteful number, since it uses less digits than its factorization.

122631751225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288545324 (or 288545319 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

Adding to 122631751225 its reverse (522157136221), we get a palindrome (644788887446).

The spelling of 122631751225 in words is "one hundred twenty-two billion, six hundred thirty-one million, seven hundred fifty-one thousand, two hundred twenty-five".