2102202444 has 12 divisors (see below), whose sum is σ = 4905139064. Its totient is φ = 700734144.

The previous prime is 2102202437. The next prime is 2102202463. The reversal of 2102202444 is 4442022012.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2102202444.

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, 87591757 + ... + 87591780.

Almost surely, 2^2102202444 is an apocalyptic number.

It is an amenable number.

2102202444 is an abundant number, since it is smaller than the sum of its proper divisors (2802936620).

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

2102202444 is a wasteful number, since it uses less digits than its factorization.

2102202444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175183544 (or 175183542 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 2102202444 is about 45849.7812862831. The cubic root of 2102202444 is about 1281.0266917296.

Adding to 2102202444 its reverse (4442022012), we get a palindrome (6544224456).

The spelling of 2102202444 in words is "two billion, one hundred two million, two hundred two thousand, four hundred forty-four".