22204342021423 has 4 divisors (see below), whose sum is σ = 22204353595528. Its totient is φ = 22204330447320.

The previous prime is 22204342021363. The next prime is 22204342021441. The reversal of 22204342021423 is 32412024340222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22204342021423 - 2¹⁷ = 22204341890351 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 (22204342021523) 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, 2145588 + ... + 7000873.

It is an arithmetic number, because the mean of its divisors is an integer number (5551088398882).

Almost surely, 2^{22204342021423} is an apocalyptic number.

22204342021423 is a deficient number, since it is larger than the sum of its proper divisors (11574105).

22204342021423 is an equidigital number, since it uses as much as digits as its factorization.

22204342021423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11574104.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 22204342021423 its reverse (32412024340222), we get a palindrome (54616366361645).

The spelling of 22204342021423 in words is "twenty-two trillion, two hundred four billion, three hundred forty-two million, twenty-one thousand, four hundred twenty-three".