231222901 has 16 divisors (see below), whose sum is σ = 288488704. Its totient is φ = 180434304.

The previous prime is 231222889. The next prime is 231222923. The reversal of 231222901 is 109222132.

It is a cyclic number.

It is not a de Polignac number, because 231222901 - 2⁷ = 231222773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231226901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10761 + ... + 24046.

It is an arithmetic number, because the mean of its divisors is an integer number (18030544).

Almost surely, 2^231222901 is an apocalyptic number.

It is an amenable number.

231222901 is a deficient number, since it is larger than the sum of its proper divisors (57265803).

231222901 is a wasteful number, since it uses less digits than its factorization.

231222901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34900.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 231222901 is about 15206.0152900094. The cubic root of 231222901 is about 613.7765361161.

The spelling of 231222901 in words is "two hundred thirty-one million, two hundred twenty-two thousand, nine hundred one".