20002202022217 has 2 divisors, whose sum is σ = 20002202022218. Its totient is φ = 20002202022216.

The previous prime is 20002202022203. The next prime is 20002202022233. The reversal of 20002202022217 is 71222020220002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14128457158656 + 5873744863561 = 3758784^2 + 2423581^2 .

It is a cyclic number.

It is not a de Polignac number, because 20002202022217 - 2²⁷ = 20002067804489 is a prime.

It is not a weakly prime, because it can be changed into another prime (20002202022917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001101011108 + 10001101011109.

It is an arithmetic number, because the mean of its divisors is an integer number (10001101011109).

Almost surely, 2^{20002202022217} is an apocalyptic number.

It is an amenable number.

20002202022217 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002202022217 is an equidigital number, since it uses as much as digits as its factorization.

20002202022217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 22.

Adding to 20002202022217 its reverse (71222020220002), we get a palindrome (91224222242219).

The spelling of 20002202022217 in words is "twenty trillion, two billion, two hundred two million, twenty-two thousand, two hundred seventeen".