2221225453 has 4 divisors (see below), whose sum is σ = 2221341628. Its totient is φ = 2221109280.

The previous prime is 2221225441. The next prime is 2221225459. The reversal of 2221225453 is 3545221222.

2221225453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1150430724 + 1070794729 = 33918^2 + 32723^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221225453 - 2¹³ = 2221217261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221225459) 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, 21888 + ... + 70153.

It is an arithmetic number, because the mean of its divisors is an integer number (555335407).

Almost surely, 2^2221225453 is an apocalyptic number.

It is an amenable number.

2221225453 is a deficient number, since it is larger than the sum of its proper divisors (116175).

2221225453 is an equidigital number, since it uses as much as digits as its factorization.

2221225453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116174.

The product of its digits is 9600, while the sum is 28.

The square root of 2221225453 is about 47129.8785591476. The cubic root of 2221225453 is about 1304.7607402316.

Adding to 2221225453 its reverse (3545221222), we get a palindrome (5766446675).

The spelling of 2221225453 in words is "two billion, two hundred twenty-one million, two hundred twenty-five thousand, four hundred fifty-three".