10221202001917 has 2 divisors, whose sum is σ = 10221202001918. Its totient is φ = 10221202001916.

The previous prime is 10221202001909. The next prime is 10221202002019. The reversal of 10221202001917 is 71910020212201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9567725394276 + 653476607641 = 3093174^2 + 808379^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221202001917 - 2³ = 10221202001909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221202007917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110601000958 + 5110601000959.

It is an arithmetic number, because the mean of its divisors is an integer number (5110601000959).

Almost surely, 2^{10221202001917} is an apocalyptic number.

It is an amenable number.

10221202001917 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221202001917 is an equidigital number, since it uses as much as digits as its factorization.

10221202001917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 10221202001917 in words is "ten trillion, two hundred twenty-one billion, two hundred two million, one thousand, nine hundred seventeen".