231110211031222 has 16 divisors (see below), whose sum is σ = 349638474873600. Its totient is φ = 114568156478952.

The previous prime is 231110211031169. The next prime is 231110211031229. The reversal of 231110211031222 is 222130112011132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 231110211031193 and 231110211031202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231110211031229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025821858 + ... + 1026047125.

It is an arithmetic number, because the mean of its divisors is an integer number (21852404679600).

Almost surely, 2^{231110211031222} is an apocalyptic number.

231110211031222 is a deficient number, since it is larger than the sum of its proper divisors (118528263842378).

231110211031222 is a wasteful number, since it uses less digits than its factorization.

231110211031222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051869467.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 231110211031222 its reverse (222130112011132), we get a palindrome (453240323042354).

The spelling of 231110211031222 in words is "two hundred thirty-one trillion, one hundred ten billion, two hundred eleven million, thirty-one thousand, two hundred twenty-two".