202142200217 has 2 divisors, whose sum is σ = 202142200218. Its totient is φ = 202142200216.

The previous prime is 202142200193. The next prime is 202142200321. The reversal of 202142200217 is 712002241202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132207868816 + 69934331401 = 363604^2 + 264451^2 .

It is a cyclic number.

It is not a de Polignac number, because 202142200217 - 2³⁴ = 184962331033 is a prime.

It is a super-2 number, since 2×202142200217² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202142200192 and 202142200201.

It is not a weakly prime, because it can be changed into another prime (202142280217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101071100108 + 101071100109.

It is an arithmetic number, because the mean of its divisors is an integer number (101071100109).

Almost surely, 2^202142200217 is an apocalyptic number.

It is an amenable number.

202142200217 is a deficient number, since it is larger than the sum of its proper divisors (1).

202142200217 is an equidigital number, since it uses as much as digits as its factorization.

202142200217 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 23.

Adding to 202142200217 its reverse (712002241202), we get a palindrome (914144441419).

The spelling of 202142200217 in words is "two hundred two billion, one hundred forty-two million, two hundred thousand, two hundred seventeen".