22224421403021 has 4 divisors (see below), whose sum is σ = 22224435010272. Its totient is φ = 22224407795772.

The previous prime is 22224421402979. The next prime is 22224421403029. The reversal of 22224421403021 is 12030412442222.

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 22224421403021 - 2⁶ = 22224421402957 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 (22224421403029) 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, 3956585 + ... + 7752638.

It is an arithmetic number, because the mean of its divisors is an integer number (5556108752568).

Almost surely, 2^{22224421403021} is an apocalyptic number.

It is an amenable number.

22224421403021 is a deficient number, since it is larger than the sum of its proper divisors (13607251).

22224421403021 is a wasteful number, since it uses less digits than its factorization.

22224421403021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13607250.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 22224421403021 its reverse (12030412442222), we get a palindrome (34254833845243).

The spelling of 22224421403021 in words is "twenty-two trillion, two hundred twenty-four billion, four hundred twenty-one million, four hundred three thousand, twenty-one".