2221722455 has 8 divisors (see below), whose sum is σ = 2672717904. Its totient is φ = 1772944000.

The previous prime is 2221722439. The next prime is 2221722457. The reversal of 2221722455 is 5542271222.

2221722455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2221722455 - 2⁴ = 2221722439 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 (2221722457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552041 + ... + 556050.

It is an arithmetic number, because the mean of its divisors is an integer number (334089738).

Almost surely, 2^2221722455 is an apocalyptic number.

2221722455 is a deficient number, since it is larger than the sum of its proper divisors (450995449).

2221722455 is a wasteful number, since it uses less digits than its factorization.

2221722455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108497.

The product of its digits is 22400, while the sum is 32.

The square root of 2221722455 is about 47135.1509491590. The cubic root of 2221722455 is about 1304.8580469288.

Adding to 2221722455 its reverse (5542271222), we get a palindrome (7763993677).

The spelling of 2221722455 in words is "two billion, two hundred twenty-one million, seven hundred twenty-two thousand, four hundred fifty-five".