231222300 has 36 divisors (see below), whose sum is σ = 669004056. Its totient is φ = 61659200.

The previous prime is 231222283. The next prime is 231222319. The reversal of 231222300 is 3222132.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 231222300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 385071 + ... + 385670.

It is an arithmetic number, because the mean of its divisors is an integer number (18583446).

Almost surely, 2^231222300 is an apocalyptic number.

231222300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231222300 is an abundant number, since it is smaller than the sum of its proper divisors (437781756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231222300 is a wasteful number, since it uses less digits than its factorization.

231222300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770758 (or 770751 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 231222300 is about 15205.9955280804. The cubic root of 231222300 is about 613.7760043348.

Adding to 231222300 its reverse (3222132), we get a palindrome (234444432).

The spelling of 231222300 in words is "two hundred thirty-one million, two hundred twenty-two thousand, three hundred".