231200222 has 8 divisors (see below), whose sum is σ = 378327672. Its totient is φ = 105091000.

The previous prime is 231200131. The next prime is 231200231. The reversal of 231200222 is 222002132.

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 = 231200197 and 231200206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5254529 + ... + 5254572.

It is an arithmetic number, because the mean of its divisors is an integer number (47290959).

Almost surely, 2^231200222 is an apocalyptic number.

231200222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231200222 is a deficient number, since it is larger than the sum of its proper divisors (147127450).

231200222 is a wasteful number, since it uses less digits than its factorization.

231200222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10509114.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 231200222 is about 15205.2695471011. The cubic root of 231200222 is about 613.7564684770.

Adding to 231200222 its reverse (222002132), we get a palindrome (453202354).

The spelling of 231200222 in words is "two hundred thirty-one million, two hundred thousand, two hundred twenty-two".