22344220044021 has 4 divisors (see below), whose sum is σ = 29792293392032. Its totient is φ = 14896146696012.

The previous prime is 22344220044019. The next prime is 22344220044037. The reversal of 22344220044021 is 12044002244322.

It is a happy number.

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 not a de Polignac number, because 22344220044021 - 2¹ = 22344220044019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22344220044021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22344220144021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3724036674001 + ... + 3724036674006.

It is an arithmetic number, because the mean of its divisors is an integer number (7448073348008).

Almost surely, 2^{22344220044021} is an apocalyptic number.

It is an amenable number.

22344220044021 is a deficient number, since it is larger than the sum of its proper divisors (7448073348011).

22344220044021 is an equidigital number, since it uses as much as digits as its factorization.

22344220044021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7448073348010.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 22344220044021 its reverse (12044002244322), we get a palindrome (34388222288343).

The spelling of 22344220044021 in words is "twenty-two trillion, three hundred forty-four billion, two hundred twenty million, forty-four thousand, twenty-one".