122212322311231 has 4 divisors (see below), whose sum is σ = 122213934240264. Its totient is φ = 122210710382200.

The previous prime is 122212322311213. The next prime is 122212322311237. The reversal of 122212322311231 is 132113223212221.

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 122212322311231 - 2⁹ = 122212322310719 is a prime.

It is a super-2 number, since 2×122212322311231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122212322311231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122212322311237) 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, 805850785 + ... + 806002426.

It is an arithmetic number, because the mean of its divisors is an integer number (30553483560066).

Almost surely, 2^{122212322311231} is an apocalyptic number.

122212322311231 is a deficient number, since it is larger than the sum of its proper divisors (1611929033).

122212322311231 is an equidigital number, since it uses as much as digits as its factorization.

122212322311231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611929032.

The product of its digits is 3456, while the sum is 28.

Adding to 122212322311231 its reverse (132113223212221), we get a palindrome (254325545523452).

The spelling of 122212322311231 in words is "one hundred twenty-two trillion, two hundred twelve billion, three hundred twenty-two million, three hundred eleven thousand, two hundred thirty-one".