2001020202217 has 2 divisors, whose sum is σ = 2001020202218. Its totient is φ = 2001020202216.

The previous prime is 2001020202179. The next prime is 2001020202277. The reversal of 2001020202217 is 7122020201002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1987476828841 + 13543373376 = 1409779^2 + 116376^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001020202217 - 2³⁵ = 1966660463849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001020202194 and 2001020202203.

It is not a weakly prime, because it can be changed into another prime (2001020202277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000510101108 + 1000510101109.

It is an arithmetic number, because the mean of its divisors is an integer number (1000510101109).

Almost surely, 2^{2001020202217} is an apocalyptic number.

It is an amenable number.

2001020202217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001020202217 is an equidigital number, since it uses as much as digits as its factorization.

2001020202217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 19.

Adding to 2001020202217 its reverse (7122020201002), we get a palindrome (9123040403219).

The spelling of 2001020202217 in words is "two trillion, one billion, twenty million, two hundred two thousand, two hundred seventeen".