122230221990 has 32 divisors (see below), whose sum is σ = 293363112960. Its totient is φ = 32593550304.

The previous prime is 122230221983. The next prime is 122230222013. The reversal of 122230221990 is 99122032221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1057681 + ... + 1167539.

It is an arithmetic number, because the mean of its divisors is an integer number (9167597280).

Almost surely, 2^122230221990 is an apocalyptic number.

122230221990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122230221990 is an abundant number, since it is smaller than the sum of its proper divisors (171132890970).

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

122230221990 is a wasteful number, since it uses less digits than its factorization.

122230221990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146956.

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 122230221990 in words is "one hundred twenty-two billion, two hundred thirty million, two hundred twenty-one thousand, nine hundred ninety".