231222850 has 12 divisors (see below), whose sum is σ = 430074594. Its totient is φ = 92489120.

The previous prime is 231222847. The next prime is 231222857. The reversal of 231222850 is 58222132.

It can be written as a sum of positive squares in 3 ways, for example, as 149157369 + 82065481 = 12213^2 + 9059^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (231222857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2312179 + ... + 2312278.

Almost surely, 2^231222850 is an apocalyptic number.

231222850 is a deficient number, since it is larger than the sum of its proper divisors (198851744).

231222850 is a wasteful number, since it uses less digits than its factorization.

231222850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4624469 (or 4624464 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 231222850 is about 15206.0136130414. The cubic root of 231222850 is about 613.7764909899.

Adding to 231222850 its reverse (58222132), we get a palindrome (289444982).

The spelling of 231222850 in words is "two hundred thirty-one million, two hundred twenty-two thousand, eight hundred fifty".