122171883920 has 40 divisors (see below), whose sum is σ = 296399618496. Its totient is φ = 46744024448.

The previous prime is 122171883917. The next prime is 122171883937. The reversal of 122171883920 is 29388171221.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33197042 + ... + 33200721.

Almost surely, 2^122171883920 is an apocalyptic number.

122171883920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122171883920 is an abundant number, since it is smaller than the sum of its proper divisors (174227734576).

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

122171883920 is a wasteful number, since it uses less digits than its factorization.

122171883920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66397799 (or 66397793 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 44.

The spelling of 122171883920 in words is "one hundred twenty-two billion, one hundred seventy-one million, eight hundred eighty-three thousand, nine hundred twenty".