231233222 has 8 divisors (see below), whose sum is σ = 378381672. Its totient is φ = 105106000.

The previous prime is 231233221. The next prime is 231233227. The reversal of 231233222 is 222332132.

231233222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 231233194 and 231233203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231233221) 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, 5255279 + ... + 5255322.

It is an arithmetic number, because the mean of its divisors is an integer number (47297709).

Almost surely, 2^231233222 is an apocalyptic number.

231233222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231233222 is a deficient number, since it is larger than the sum of its proper divisors (147148450).

231233222 is a wasteful number, since it uses less digits than its factorization.

231233222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10510614.

The product of its digits is 864, while the sum is 20.

The square root of 231233222 is about 15206.3546584972. The cubic root of 231233222 is about 613.7856682758.

Adding to 231233222 its reverse (222332132), we get a palindrome (453565354).

The spelling of 231233222 in words is "two hundred thirty-one million, two hundred thirty-three thousand, two hundred twenty-two".