2225031321 has 4 divisors (see below), whose sum is σ = 2966708432. Its totient is φ = 1483354212.

The previous prime is 2225031317. The next prime is 2225031323. The reversal of 2225031321 is 1231305222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2225031321 - 2² = 2225031317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2225031323) 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, 370838551 + ... + 370838556.

It is an arithmetic number, because the mean of its divisors is an integer number (741677108).

Almost surely, 2^2225031321 is an apocalyptic number.

It is an amenable number.

2225031321 is a deficient number, since it is larger than the sum of its proper divisors (741677111).

2225031321 is an equidigital number, since it uses as much as digits as its factorization.

2225031321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741677110.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2225031321 is about 47170.2376610506. The cubic root of 2225031321 is about 1305.5055113548.

Adding to 2225031321 its reverse (1231305222), we get a palindrome (3456336543).

The spelling of 2225031321 in words is "two billion, two hundred twenty-five million, thirty-one thousand, three hundred twenty-one".