20020201102217 has 2 divisors, whose sum is σ = 20020201102218. Its totient is φ = 20020201102216.

The previous prime is 20020201102183. The next prime is 20020201102229. The reversal of 20020201102217 is 71220110202002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17019057173056 + 3001143929161 = 4125416^2 + 1732381^2 .

It is a cyclic number.

It is not a de Polignac number, because 20020201102217 - 2³² = 20015906134921 is a prime.

It is not a weakly prime, because it can be changed into another prime (20020201102247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010100551108 + 10010100551109.

It is an arithmetic number, because the mean of its divisors is an integer number (10010100551109).

Almost surely, 2^{20020201102217} is an apocalyptic number.

It is an amenable number.

20020201102217 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020201102217 is an equidigital number, since it uses as much as digits as its factorization.

20020201102217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 20020201102217 its reverse (71220110202002), we get a palindrome (91240311304219).

The spelling of 20020201102217 in words is "twenty trillion, twenty billion, two hundred one million, one hundred two thousand, two hundred seventeen".