231102102302221 has 8 divisors (see below), whose sum is σ = 232582093367960. Its totient is φ = 229622212542528.

The previous prime is 231102102302173. The next prime is 231102102302251. The reversal of 231102102302221 is 122203201201132.

It can be written as a sum of positive squares in 4 ways, for example, as 1760942270025 + 229341160032196 = 1327005^2 + 15144014^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231102102302221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231102102302192 and 231102102302201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231102102302251) 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, 20746806 + ... + 29876983.

It is an arithmetic number, because the mean of its divisors is an integer number (29072761670995).

Almost surely, 2^{231102102302221} is an apocalyptic number.

It is an amenable number.

231102102302221 is a deficient number, since it is larger than the sum of its proper divisors (1479991065739).

231102102302221 is a wasteful number, since it uses less digits than its factorization.

231102102302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50653023.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 231102102302221 its reverse (122203201201132), we get a palindrome (353305303503353).

The spelling of 231102102302221 in words is "two hundred thirty-one trillion, one hundred two billion, one hundred two million, three hundred two thousand, two hundred twenty-one".