10221131317 has 2 divisors, whose sum is σ = 10221131318. Its totient is φ = 10221131316.

The previous prime is 10221131191. The next prime is 10221131351. The reversal of 10221131317 is 71313112201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8305405956 + 1915725361 = 91134^2 + 43769^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221131317 - 2³¹ = 8073647669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221131617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110565658 + 5110565659.

It is an arithmetic number, because the mean of its divisors is an integer number (5110565659).

Almost surely, 2^10221131317 is an apocalyptic number.

It is an amenable number.

10221131317 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221131317 is an equidigital number, since it uses as much as digits as its factorization.

10221131317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 22.

Adding to 10221131317 its reverse (71313112201), we get a palindrome (81534243518).

The spelling of 10221131317 in words is "ten billion, two hundred twenty-one million, one hundred thirty-one thousand, three hundred seventeen".