231143044222 has 8 divisors (see below), whose sum is σ = 346769419176. Its totient is φ = 115553237832.

The previous prime is 231143044207. The next prime is 231143044243. The reversal of 231143044222 is 222440341132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9126333 + ... + 9151624.

It is an arithmetic number, because the mean of its divisors is an integer number (43346177397).

Almost surely, 2^231143044222 is an apocalyptic number.

231143044222 is a deficient number, since it is larger than the sum of its proper divisors (115626374954).

231143044222 is a wasteful number, since it uses less digits than its factorization.

231143044222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18284282.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 231143044222 its reverse (222440341132), we get a palindrome (453583385354).

The spelling of 231143044222 in words is "two hundred thirty-one billion, one hundred forty-three million, forty-four thousand, two hundred twenty-two".