2101122244 has 81 divisors (see below), whose sum is σ = 4178159559. Its totient is φ = 924094080.

The previous prime is 2101122229. The next prime is 2101122251. The reversal of 2101122244 is 4422211012.

The square root of 2101122244 is 45838.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1399508100 + 701614144 = 37410^2 + 26488^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 48863287 + ... + 48863329.

Almost surely, 2^2101122244 is an apocalyptic number.

2101122244 is the 45838-th square number.

It is an amenable number.

2101122244 is a deficient number, since it is larger than the sum of its proper divisors (2077037315).

2101122244 is a wasteful number, since it uses less digits than its factorization.

2101122244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The cubic root of 2101122244 is about 1280.8072390129.

Multiplying 2101122244 by its product of nonzero digits (256), we get a square (537887294464 = 733408²).

Adding to 2101122244 its reverse (4422211012), we get a palindrome (6523333256).

The spelling of 2101122244 in words is "two billion, one hundred one million, one hundred twenty-two thousand, two hundred forty-four".