22211572423 has 4 divisors (see below), whose sum is σ = 22419157320. Its totient is φ = 22003987528.

The previous prime is 22211572393. The next prime is 22211572433. The reversal of 22211572423 is 32427511222.

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 22211572423 - 2⁵ = 22211572391 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 (22211572433) 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, 103792288 + ... + 103792501.

It is an arithmetic number, because the mean of its divisors is an integer number (5604789330).

Almost surely, 2^22211572423 is an apocalyptic number.

22211572423 is a deficient number, since it is larger than the sum of its proper divisors (207584897).

22211572423 is a wasteful number, since it uses less digits than its factorization.

22211572423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207584896.

The product of its digits is 13440, while the sum is 31.

The spelling of 22211572423 in words is "twenty-two billion, two hundred eleven million, five hundred seventy-two thousand, four hundred twenty-three".