231111140222 has 16 divisors (see below), whose sum is σ = 353908764000. Its totient is φ = 113163398880.

The previous prime is 231111140213. The next prime is 231111140231. The reversal of 231111140222 is 222041111132.

It is an interprime number because it is at equal distance from previous prime (231111140213) and next prime (231111140231).

It is a junction number, because it is equal to n+sod(n) for n = 231111140194 and 231111140203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5440397 + ... + 5482712.

It is an arithmetic number, because the mean of its divisors is an integer number (22119297750).

Almost surely, 2^231111140222 is an apocalyptic number.

231111140222 is a deficient number, since it is larger than the sum of its proper divisors (122797623778).

231111140222 is a wasteful number, since it uses less digits than its factorization.

231111140222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10923331.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 231111140222 its reverse (222041111132), we get a palindrome (453152251354).

The spelling of 231111140222 in words is "two hundred thirty-one billion, one hundred eleven million, one hundred forty thousand, two hundred twenty-two".