22021449227 has 2 divisors, whose sum is σ = 22021449228. Its totient is φ = 22021449226.

The previous prime is 22021449181. The next prime is 22021449253. The reversal of 22021449227 is 72294412022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22021449227 - 2²⁰ = 22020400651 is a prime.

It is not a weakly prime, because it can be changed into another prime (22021449427) 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 as a sum of consecutive naturals, namely, 11010724613 + 11010724614.

It is an arithmetic number, because the mean of its divisors is an integer number (11010724614).

Almost surely, 2^22021449227 is an apocalyptic number.

22021449227 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021449227 is an equidigital number, since it uses as much as digits as its factorization.

22021449227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 22021449227 in words is "twenty-two billion, twenty-one million, four hundred forty-nine thousand, two hundred twenty-seven".