2101200992 has 48 divisors (see below), whose sum is σ = 4634803152. Its totient is φ = 929272320.

The previous prime is 2101200991. The next prime is 2101201009. The reversal of 2101200992 is 2990021012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101200991) 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, 67643 + ... + 93690.

It is an arithmetic number, because the mean of its divisors is an integer number (96558399).

Almost surely, 2^2101200992 is an apocalyptic number.

2101200992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2101200992 is an abundant number, since it is smaller than the sum of its proper divisors (2533602160).

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

2101200992 is a wasteful number, since it uses less digits than its factorization.

2101200992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161391 (or 161383 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 2101200992 is about 45838.8589735827. The cubic root of 2101200992 is about 1280.8232399459.

The spelling of 2101200992 in words is "two billion, one hundred one million, two hundred thousand, nine hundred ninety-two".