122775491320 has 64 divisors (see below), whose sum is σ = 297554135040. Its totient is φ = 45459638400.

The previous prime is 122775491281. The next prime is 122775491327. The reversal of 122775491320 is 23194577221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122775491327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2123926 + ... + 2180965.

It is an arithmetic number, because the mean of its divisors is an integer number (4649283360).

Almost surely, 2^122775491320 is an apocalyptic number.

122775491320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122775491320 is an abundant number, since it is smaller than the sum of its proper divisors (174778643720).

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

122775491320 is a wasteful number, since it uses less digits than its factorization.

122775491320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4304956 (or 4304952 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 122775491320 in words is "one hundred twenty-two billion, seven hundred seventy-five million, four hundred ninety-one thousand, three hundred twenty".