22111312222231 has 4 divisors (see below), whose sum is σ = 22824580358464. Its totient is φ = 21398044086000.

The previous prime is 22111312222193. The next prime is 22111312222247. The reversal of 22111312222231 is 13222221311122.

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 22111312222231 - 2³⁵ = 22076952483863 is a prime.

It is a super-3 number, since 3×22111312222231³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22111312222196 and 22111312222205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111312252231) 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, 356634068070 + ... + 356634068131.

It is an arithmetic number, because the mean of its divisors is an integer number (5706145089616).

Almost surely, 2^{22111312222231} is an apocalyptic number.

22111312222231 is a deficient number, since it is larger than the sum of its proper divisors (713268136233).

22111312222231 is an equidigital number, since it uses as much as digits as its factorization.

22111312222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713268136232.

The product of its digits is 1152, while the sum is 25.

Adding to 22111312222231 its reverse (13222221311122), we get a palindrome (35333533533353).

The spelling of 22111312222231 in words is "twenty-two trillion, one hundred eleven billion, three hundred twelve million, two hundred twenty-two thousand, two hundred thirty-one".