122578821884 has 24 divisors (see below), whose sum is σ = 220941940800. Its totient is φ = 59462047296.

The previous prime is 122578821851. The next prime is 122578821887. The reversal of 122578821884 is 488128875221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122578821887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1134932 + ... + 1238235.

It is an arithmetic number, because the mean of its divisors is an integer number (9205914200).

Almost surely, 2^122578821884 is an apocalyptic number.

It is an amenable number.

122578821884 is a deficient number, since it is larger than the sum of its proper divisors (98363118916).

122578821884 is a wasteful number, since it uses less digits than its factorization.

122578821884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373557 (or 2373555 counting only the distinct ones).

The product of its digits is 4587520, while the sum is 56.

The spelling of 122578821884 in words is "one hundred twenty-two billion, five hundred seventy-eight million, eight hundred twenty-one thousand, eight hundred eighty-four".