22131222202223 has 4 divisors (see below), whose sum is σ = 22140675951768. Its totient is φ = 22121768452680.

The previous prime is 22131222202217. The next prime is 22131222202283. The reversal of 22131222202223 is 32220222213122.

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 22131222202223 - 2²⁸ = 22130953766767 is a prime.

It is a super-2 number, since 2×22131222202223² (a number of 27 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 = 22131222202192 and 22131222202201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131222202283) 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, 4726871261 + ... + 4726875942.

It is an arithmetic number, because the mean of its divisors is an integer number (5535168987942).

Almost surely, 2^{22131222202223} is an apocalyptic number.

22131222202223 is a deficient number, since it is larger than the sum of its proper divisors (9453749545).

22131222202223 is an equidigital number, since it uses as much as digits as its factorization.

22131222202223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9453749544.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 22131222202223 its reverse (32220222213122), we get a palindrome (54351444415345).

The spelling of 22131222202223 in words is "twenty-two trillion, one hundred thirty-one billion, two hundred twenty-two million, two hundred two thousand, two hundred twenty-three".