2101200988 has 12 divisors (see below), whose sum is σ = 3755338272. Its totient is φ = 1028247200.

The previous prime is 2101200979. The next prime is 2101200991. The reversal of 2101200988 is 8890021012.

It is a happy number.

It is a super-2 number, since 2×2101200988² = 8830091183944352288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5588113 + ... + 5588488.

It is an arithmetic number, because the mean of its divisors is an integer number (312944856).

Almost surely, 2^2101200988 is an apocalyptic number.

It is an amenable number.

2101200988 is a deficient number, since it is larger than the sum of its proper divisors (1654137284).

2101200988 is a wasteful number, since it uses less digits than its factorization.

2101200988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11176652 (or 11176650 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 2101200988 is about 45838.8589299516. The cubic root of 2101200988 is about 1280.8232391331.

The spelling of 2101200988 in words is "two billion, one hundred one million, two hundred thousand, nine hundred eighty-eight".