122552774278 has 16 divisors (see below), whose sum is σ = 200788819920. Its totient is φ = 55636940800.

The previous prime is 122552774273. The next prime is 122552774303. The reversal of 122552774278 is 872477255221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122552774273) 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 7 ways as a sum of consecutive naturals, for example, 3425083 + ... + 3460678.

It is an arithmetic number, because the mean of its divisors is an integer number (12549301245).

Almost surely, 2^122552774278 is an apocalyptic number.

122552774278 is a deficient number, since it is larger than the sum of its proper divisors (78236045642).

122552774278 is a wasteful number, since it uses less digits than its factorization.

122552774278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6886583.

The product of its digits is 4390400, while the sum is 52.

The spelling of 122552774278 in words is "one hundred twenty-two billion, five hundred fifty-two million, seven hundred seventy-four thousand, two hundred seventy-eight".