122561252727 has 16 divisors (see below), whose sum is σ = 167762370048. Its totient is φ = 79542429120.

The previous prime is 122561252711. The next prime is 122561252741. The reversal of 122561252727 is 727252165221.

It is not a de Polignac number, because 122561252727 - 2⁴ = 122561252711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122561252747) 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 in 15 ways as a sum of consecutive naturals, for example, 1019113 + ... + 1133010.

It is an arithmetic number, because the mean of its divisors is an integer number (10485148128).

Almost surely, 2^122561252727 is an apocalyptic number.

122561252727 is a deficient number, since it is larger than the sum of its proper divisors (45201117321).

122561252727 is a wasteful number, since it uses less digits than its factorization.

122561252727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152630.

The product of its digits is 235200, while the sum is 42.

The spelling of 122561252727 in words is "one hundred twenty-two billion, five hundred sixty-one million, two hundred fifty-two thousand, seven hundred twenty-seven".