202122011017 has 2 divisors, whose sum is σ = 202122011018. Its totient is φ = 202122011016.

The previous prime is 202122010973. The next prime is 202122011041. The reversal of 202122011017 is 710110221202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153992671561 + 48129339456 = 392419^2 + 219384^2 .

It is a cyclic number.

It is not a de Polignac number, because 202122011017 - 2²³ = 202113622409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202122010985 and 202122011003.

It is not a weakly prime, because it can be changed into another prime (202122011317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101061005508 + 101061005509.

It is an arithmetic number, because the mean of its divisors is an integer number (101061005509).

Almost surely, 2^202122011017 is an apocalyptic number.

It is an amenable number.

202122011017 is a deficient number, since it is larger than the sum of its proper divisors (1).

202122011017 is an equidigital number, since it uses as much as digits as its factorization.

202122011017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 202122011017 its reverse (710110221202), we get a palindrome (912232232219).

The spelling of 202122011017 in words is "two hundred two billion, one hundred twenty-two million, eleven thousand, seventeen".