22223022431 has 4 divisors (see below), whose sum is σ = 22249895112. Its totient is φ = 22196149752.

The previous prime is 22223022427. The next prime is 22223022433. The reversal of 22223022431 is 13422032222.

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 22223022431 - 2² = 22223022427 is a prime.

It is a super-2 number, since 2×22223022431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22223022397 and 22223022406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22223022433) 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, 13435100 + ... + 13436753.

It is an arithmetic number, because the mean of its divisors is an integer number (5562473778).

Almost surely, 2^22223022431 is an apocalyptic number.

22223022431 is a deficient number, since it is larger than the sum of its proper divisors (26872681).

22223022431 is an equidigital number, since it uses as much as digits as its factorization.

22223022431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26872680.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 22223022431 its reverse (13422032222), we get a palindrome (35645054653).

The spelling of 22223022431 in words is "twenty-two billion, two hundred twenty-three million, twenty-two thousand, four hundred thirty-one".