122173040725 has 12 divisors (see below), whose sum is σ = 151511078340. Its totient is φ = 97727782400.

The previous prime is 122173040711. The next prime is 122173040729. The reversal of 122173040725 is 527040371221.

It can be written as a sum of positive squares in 6 ways, for example, as 13373997316 + 108799043409 = 115646^2 + 329847^2 .

It is not a de Polignac number, because 122173040725 - 2⁷ = 122173040597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122173040729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28060 + ... + 495109.

It is an arithmetic number, because the mean of its divisors is an integer number (12625923195).

Almost surely, 2^122173040725 is an apocalyptic number.

It is an amenable number.

122173040725 is a deficient number, since it is larger than the sum of its proper divisors (29338037615).

122173040725 is an equidigital number, since it uses as much as digits as its factorization.

122173040725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532520 (or 532515 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The spelling of 122173040725 in words is "one hundred twenty-two billion, one hundred seventy-three million, forty thousand, seven hundred twenty-five".