22222124431 has 4 divisors (see below), whose sum is σ = 23931518632. Its totient is φ = 20512730232.

The previous prime is 22222124411. The next prime is 22222124453. The reversal of 22222124431 is 13442122222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13442122222 = 2 ⋅6721061111.

It is a cyclic number.

It is not a de Polignac number, because 22222124431 - 2⁹ = 22222123919 is a prime.

It is a super-2 number, since 2×22222124431² (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 = 22222124396 and 22222124405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222124411) 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, 854697081 + ... + 854697106.

It is an arithmetic number, because the mean of its divisors is an integer number (5982879658).

Almost surely, 2^22222124431 is an apocalyptic number.

22222124431 is a deficient number, since it is larger than the sum of its proper divisors (1709394201).

22222124431 is a wasteful number, since it uses less digits than its factorization.

22222124431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709394200.

The product of its digits is 3072, while the sum is 25.

Adding to 22222124431 its reverse (13442122222), we get a palindrome (35664246653).

The spelling of 22222124431 in words is "twenty-two billion, two hundred twenty-two million, one hundred twenty-four thousand, four hundred thirty-one".