122100011011992 has 128 divisors (see below), whose sum is σ = 332776622626560. Its totient is φ = 37107086184960.

The previous prime is 122100011011949. The next prime is 122100011012009. The reversal of 122100011011992 is 299110110001221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100832767 + ... + 102036497.

It is an arithmetic number, because the mean of its divisors is an integer number (2599817364270).

Almost surely, 2^{122100011011992} is an apocalyptic number.

122100011011992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122100011011992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166388311313280).

122100011011992 is an abundant number, since it is smaller than the sum of its proper divisors (210676611614568).

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

122100011011992 is a wasteful number, since it uses less digits than its factorization.

122100011011992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207753 (or 1207749 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 30.

The spelling of 122100011011992 in words is "one hundred twenty-two trillion, one hundred billion, eleven million, eleven thousand, nine hundred ninety-two".