231002323022221 has 8 divisors (see below), whose sum is σ = 232419107076800. Its totient is φ = 229588098651648.

The previous prime is 231002323022203. The next prime is 231002323022311. The reversal of 231002323022221 is 122220323200132.

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

It is a cyclic number.

It is not a de Polignac number, because 231002323022221 - 2²¹ = 231002320925069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231002323022521) 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, 639739956 + ... + 640100941.

It is an arithmetic number, because the mean of its divisors is an integer number (29052388384600).

Almost surely, 2^{231002323022221} is an apocalyptic number.

It is an amenable number.

231002323022221 is a deficient number, since it is larger than the sum of its proper divisors (1416784054579).

231002323022221 is a wasteful number, since it uses less digits than its factorization.

231002323022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279842003.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 231002323022221 its reverse (122220323200132), we get a palindrome (353222646222353).

The spelling of 231002323022221 in words is "two hundred thirty-one trillion, two billion, three hundred twenty-three million, twenty-two thousand, two hundred twenty-one".