1992100099220 has 48 divisors (see below), whose sum is σ = 5215680263808. Its totient is φ = 620914316160.

The previous prime is 1992100099211. The next prime is 1992100099237. The reversal of 1992100099220 is 229900012991.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 646784207 + ... + 646787286.

It is an arithmetic number, because the mean of its divisors is an integer number (108660005496).

Almost surely, 2^{1992100099220} is an apocalyptic number.

1992100099220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1992100099220 is an abundant number, since it is smaller than the sum of its proper divisors (3223580164588).

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

1992100099220 is a wasteful number, since it uses less digits than its factorization.

1992100099220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293571520 (or 1293571518 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 44.

The spelling of 1992100099220 in words is "one trillion, nine hundred ninety-two billion, one hundred million, ninety-nine thousand, two hundred twenty".