231241222 has 8 divisors (see below), whose sum is σ = 354242016. Its totient is φ = 113160552.

The previous prime is 231241207. The next prime is 231241247. The reversal of 231241222 is 222142132.

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

It is a self number, because there is not a number n which added to its sum of digits gives 231241222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1229913 + ... + 1230100.

It is an arithmetic number, because the mean of its divisors is an integer number (44280252).

Almost surely, 2^231241222 is an apocalyptic number.

231241222 is a deficient number, since it is larger than the sum of its proper divisors (123000794).

231241222 is a wasteful number, since it uses less digits than its factorization.

231241222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460062.

The product of its digits is 384, while the sum is 19.

The square root of 231241222 is about 15206.6177041445. The cubic root of 231241222 is about 613.7927465965.

Adding to 231241222 its reverse (222142132), we get a palindrome (453383354).

It can be divided in two parts, 2312 and 41222, that added together give a palindrome (43534).

The spelling of 231241222 in words is "two hundred thirty-one million, two hundred forty-one thousand, two hundred twenty-two".