122531310722 has 6 divisors (see below), whose sum is σ = 183797708643. Its totient is φ = 61265407842.

The previous prime is 122531310683. The next prime is 122531310749. The reversal of 122531310722 is 227013135221.

It can be written as a sum of positive squares in only one way, i.e., 61265655361 + 61265655361 = 247519^2 + 247519^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=247519.

It is a super-2 number, since 2×122531310722² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 371279 + ... + 618797.

Almost surely, 2^122531310722 is an apocalyptic number.

122531310722 is a deficient number, since it is larger than the sum of its proper divisors (61266397921).

122531310722 is an frugal number, since it uses more digits than its factorization.

122531310722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495040 (or 247521 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

Adding to 122531310722 its reverse (227013135221), we get a palindrome (349544445943).

The spelling of 122531310722 in words is "one hundred twenty-two billion, five hundred thirty-one million, three hundred ten thousand, seven hundred twenty-two".