122557507012 has 6 divisors (see below), whose sum is σ = 214475637278. Its totient is φ = 61278753504.

The previous prime is 122557506997. The next prime is 122557507013. The reversal of 122557507012 is 210705755221.

It can be written as a sum of positive squares in only one way, i.e., 103229834436 + 19327672576 = 321294^2 + 139024^2 .

It is not an unprimeable number, because it can be changed into a prime (122557507013) by changing a digit.

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 as a sum of consecutive naturals, namely, 15319688373 + ... + 15319688380.

Almost surely, 2^122557507012 is an apocalyptic number.

It is an amenable number.

122557507012 is a deficient number, since it is larger than the sum of its proper divisors (91918130266).

122557507012 is a wasteful number, since it uses less digits than its factorization.

122557507012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30639376757 (or 30639376755 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 37.

The spelling of 122557507012 in words is "one hundred twenty-two billion, five hundred fifty-seven million, five hundred seven thousand, twelve".