22134212231 has 4 divisors (see below), whose sum is σ = 22266752592. Its totient is φ = 22001671872.

The previous prime is 22134212207. The next prime is 22134212239. The reversal of 22134212231 is 13221243122.

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 22134212231 - 2⁶ = 22134212167 is a prime.

It is a super-2 number, since 2×22134212231² (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 = 22134212197 and 22134212206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22134212239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66269930 + ... + 66270263.

It is an arithmetic number, because the mean of its divisors is an integer number (5566688148).

Almost surely, 2^22134212231 is an apocalyptic number.

22134212231 is a deficient number, since it is larger than the sum of its proper divisors (132540361).

22134212231 is a wasteful number, since it uses less digits than its factorization.

22134212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132540360.

The product of its digits is 1152, while the sum is 23.

Adding to 22134212231 its reverse (13221243122), we get a palindrome (35355455353).

The spelling of 22134212231 in words is "twenty-two billion, one hundred thirty-four million, two hundred twelve thousand, two hundred thirty-one".