122101021992 has 32 divisors (see below), whose sum is σ = 306049582080. Its totient is φ = 40594070400.

The previous prime is 122101021981. The next prime is 122101021997. The reversal of 122101021992 is 299120101221.

It is not an unprimeable number, because it can be changed into a prime (122101021997) 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, 6632509 + ... + 6650892.

It is an arithmetic number, because the mean of its divisors is an integer number (9564049440).

Almost surely, 2^122101021992 is an apocalyptic number.

122101021992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122101021992 is an abundant number, since it is smaller than the sum of its proper divisors (183948560088).

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

122101021992 is a wasteful number, since it uses less digits than its factorization.

122101021992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13283793 (or 13283789 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 30.

The spelling of 122101021992 in words is "one hundred twenty-two billion, one hundred one million, twenty-one thousand, nine hundred ninety-two".