2100225544 has 8 divisors (see below), whose sum is σ = 3937922910. Its totient is φ = 1050112768.

The previous prime is 2100225521. The next prime is 2100225587. The reversal of 2100225544 is 4455220012.

It can be written as a sum of positive squares in only one way, i.e., 1995408900 + 104816644 = 44670^2 + 10238^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131264089 + ... + 131264104.

Almost surely, 2^2100225544 is an apocalyptic number.

It is an amenable number.

2100225544 is a deficient number, since it is larger than the sum of its proper divisors (1837697366).

2100225544 is a wasteful number, since it uses less digits than its factorization.

2100225544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262528199 (or 262528195 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2100225544 is about 45828.2177702777. The cubic root of 2100225544 is about 1280.6250088935.

Adding to 2100225544 its reverse (4455220012), we get a palindrome (6555445556).

The spelling of 2100225544 in words is "two billion, one hundred million, two hundred twenty-five thousand, five hundred forty-four".