2101125044 has 12 divisors (see below), whose sum is σ = 3687213600. Its totient is φ = 1047635448.

The previous prime is 2101125043. The next prime is 2101125071. The reversal of 2101125044 is 4405211012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101125043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730154 + ... + 733025.

It is an arithmetic number, because the mean of its divisors is an integer number (307267800).

Almost surely, 2^2101125044 is an apocalyptic number.

It is an amenable number.

2101125044 is a deficient number, since it is larger than the sum of its proper divisors (1586088556).

2101125044 is a wasteful number, since it uses less digits than its factorization.

2101125044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463542 (or 1463540 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2101125044 is about 45838.0305423346. The cubic root of 2101125044 is about 1280.8078079563.

Adding to 2101125044 its reverse (4405211012), we get a palindrome (6506336056).

The spelling of 2101125044 in words is "two billion, one hundred one million, one hundred twenty-five thousand, forty-four".