22204212423 has 4 divisors (see below), whose sum is σ = 29605616568. Its totient is φ = 14802808280.

The previous prime is 22204212409. The next prime is 22204212451. The reversal of 22204212423 is 32421240222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22204212423 - 2²⁰ = 22203163847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22204212393 and 22204212402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22204212403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3700702068 + ... + 3700702073.

It is an arithmetic number, because the mean of its divisors is an integer number (7401404142).

Almost surely, 2^22204212423 is an apocalyptic number.

22204212423 is a deficient number, since it is larger than the sum of its proper divisors (7401404145).

22204212423 is an equidigital number, since it uses as much as digits as its factorization.

22204212423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7401404144.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 22204212423 its reverse (32421240222), we get a palindrome (54625452645).

The spelling of 22204212423 in words is "twenty-two billion, two hundred four million, two hundred twelve thousand, four hundred twenty-three".