10231113206221 has 2 divisors, whose sum is σ = 10231113206222. Its totient is φ = 10231113206220.

The previous prime is 10231113206123. The next prime is 10231113206269. The reversal of 10231113206221 is 12260231113201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5823679032900 + 4407434173321 = 2413230^2 + 2099389^2 .

It is a cyclic number.

It is not a de Polignac number, because 10231113206221 - 2³⁷ = 10093674252749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10231113209221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5115556603110 + 5115556603111.

It is an arithmetic number, because the mean of its divisors is an integer number (5115556603111).

Almost surely, 2^{10231113206221} is an apocalyptic number.

It is an amenable number.

10231113206221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10231113206221 is an equidigital number, since it uses as much as digits as its factorization.

10231113206221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 10231113206221 its reverse (12260231113201), we get a palindrome (22491344319422).

The spelling of 10231113206221 in words is "ten trillion, two hundred thirty-one billion, one hundred thirteen million, two hundred six thousand, two hundred twenty-one".