231222201 has 8 divisors (see below), whose sum is σ = 352338624. Its totient is φ = 132126960.

The previous prime is 231222179. The next prime is 231222209. The reversal of 231222201 is 102222132.

It is a happy number.

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

It is not a de Polignac number, because 231222201 - 2¹¹ = 231220153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231222209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5505270 + ... + 5505311.

It is an arithmetic number, because the mean of its divisors is an integer number (44042328).

Almost surely, 2^231222201 is an apocalyptic number.

231222201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

231222201 is a deficient number, since it is larger than the sum of its proper divisors (121116423).

231222201 is a wasteful number, since it uses less digits than its factorization.

231222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11010591.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 231222201 is about 15205.9922727851. The cubic root of 231222201 is about 613.7759167368.

Adding to 231222201 its reverse (102222132), we get a palindrome (333444333).

The spelling of 231222201 in words is "two hundred thirty-one million, two hundred twenty-two thousand, two hundred one".