22241544421 has 4 divisors (see below), whose sum is σ = 22264545952. Its totient is φ = 22218542892.

The previous prime is 22241544389. The next prime is 22241544469. The reversal of 22241544421 is 12444514222.

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 a cyclic number.

It is not a de Polignac number, because 22241544421 - 2⁵ = 22241544389 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 (22241524421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11499315 + ... + 11501248.

It is an arithmetic number, because the mean of its divisors is an integer number (5566136488).

Almost surely, 2^22241544421 is an apocalyptic number.

It is an amenable number.

22241544421 is a deficient number, since it is larger than the sum of its proper divisors (23001531).

22241544421 is an equidigital number, since it uses as much as digits as its factorization.

22241544421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23001530.

The product of its digits is 20480, while the sum is 31.

The spelling of 22241544421 in words is "twenty-two billion, two hundred forty-one million, five hundred forty-four thousand, four hundred twenty-one".