2251122304 has 16 divisors (see below), whose sum is σ = 4484657970. Its totient is φ = 1125561088.

The previous prime is 2251122271. The next prime is 2251122311. The reversal of 2251122304 is 4032211522.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1876622400 + 374499904 = 43320^2 + 19352^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8793319 + ... + 8793574.

Almost surely, 2^2251122304 is an apocalyptic number.

It is an amenable number.

2251122304 is a deficient number, since it is larger than the sum of its proper divisors (2233535666).

2251122304 is an equidigital number, since it uses as much as digits as its factorization.

2251122304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17586907 (or 17586895 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2251122304 is about 47445.9935505623. The cubic root of 2251122304 is about 1310.5885326340.

Adding to 2251122304 its reverse (4032211522), we get a palindrome (6283333826).

The spelling of 2251122304 in words is "two billion, two hundred fifty-one million, one hundred twenty-two thousand, three hundred four".