122450991078 has 16 divisors (see below), whose sum is σ = 263740596336. Its totient is φ = 37677228000.

The previous prime is 122450991073. The next prime is 122450991083. The reversal of 122450991078 is 870199054221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (122450991073) and next prime (122450991083).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122450991073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 784942173 + ... + 784942328.

It is an arithmetic number, because the mean of its divisors is an integer number (16483787271).

Almost surely, 2^122450991078 is an apocalyptic number.

122450991078 is an abundant number, since it is smaller than the sum of its proper divisors (141289605258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122450991078 is a wasteful number, since it uses less digits than its factorization.

122450991078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569884519.

The product of its (nonzero) digits is 362880, while the sum is 48.

The spelling of 122450991078 in words is "one hundred twenty-two billion, four hundred fifty million, nine hundred ninety-one thousand, seventy-eight".