231320012222 has 8 divisors (see below), whose sum is σ = 373670789016. Its totient is φ = 106763082552.

The previous prime is 231320012219. The next prime is 231320012227. The reversal of 231320012222 is 222210023132.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 231320012194 and 231320012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231320012227) 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, 4448461748 + ... + 4448461799.

It is an arithmetic number, because the mean of its divisors is an integer number (46708848627).

Almost surely, 2^231320012222 is an apocalyptic number.

231320012222 is a deficient number, since it is larger than the sum of its proper divisors (142350776794).

231320012222 is a wasteful number, since it uses less digits than its factorization.

231320012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8896923562.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 231320012222 its reverse (222210023132), we get a palindrome (453530035354).

The spelling of 231320012222 in words is "two hundred thirty-one billion, three hundred twenty million, twelve thousand, two hundred twenty-two".