2225322021 has 16 divisors (see below), whose sum is σ = 3219733440. Its totient is φ = 1358972160.

The previous prime is 2225321983. The next prime is 2225322023. The reversal of 2225322021 is 1202235222.

It is not a de Polignac number, because 2225322021 - 2⁶ = 2225321957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225322023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212676 + ... + 222893.

It is an arithmetic number, because the mean of its divisors is an integer number (201233340).

Almost surely, 2^2225322021 is an apocalyptic number.

It is an amenable number.

2225322021 is a deficient number, since it is larger than the sum of its proper divisors (994411419).

2225322021 is a wasteful number, since it uses less digits than its factorization.

2225322021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435716.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 2225322021 is about 47173.3189525605. The cubic root of 2225322021 is about 1305.5623635771.

Adding to 2225322021 its reverse (1202235222), we get a palindrome (3427557243).

The spelling of 2225322021 in words is "two billion, two hundred twenty-five million, three hundred twenty-two thousand, twenty-one".