22444321013021 has 4 divisors (see below), whose sum is σ = 22448883799200. Its totient is φ = 22439758226844.

The previous prime is 22444321012913. The next prime is 22444321013027. The reversal of 22444321013021 is 12031012344422.

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 22444321013021 - 2¹⁸ = 22444320750877 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 (22444321013027) 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, 2281385711 + ... + 2281395548.

It is an arithmetic number, because the mean of its divisors is an integer number (5612220949800).

Almost surely, 2^{22444321013021} is an apocalyptic number.

It is an amenable number.

22444321013021 is a deficient number, since it is larger than the sum of its proper divisors (4562786179).

22444321013021 is an equidigital number, since it uses as much as digits as its factorization.

22444321013021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4562786178.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 22444321013021 its reverse (12031012344422), we get a palindrome (34475333357443).

The spelling of 22444321013021 in words is "twenty-two trillion, four hundred forty-four billion, three hundred twenty-one million, thirteen thousand, twenty-one".