202221100010197 has 2 divisors, whose sum is σ = 202221100010198. Its totient is φ = 202221100010196.

The previous prime is 202221100010129. The next prime is 202221100010233. The reversal of 202221100010197 is 791010001122202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190962384139396 + 11258715870801 = 13818914^2 + 3355401^2 .

It is a cyclic number.

It is not a de Polignac number, because 202221100010197 - 2¹¹ = 202221100008149 is a prime.

It is a super-2 number, since 2×202221100010197² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202221100710197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101110550005098 + 101110550005099.

It is an arithmetic number, because the mean of its divisors is an integer number (101110550005099).

Almost surely, 2^{202221100010197} is an apocalyptic number.

It is an amenable number.

202221100010197 is a deficient number, since it is larger than the sum of its proper divisors (1).

202221100010197 is an equidigital number, since it uses as much as digits as its factorization.

202221100010197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

Adding to 202221100010197 its reverse (791010001122202), we get a palindrome (993231101132399).

The spelling of 202221100010197 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred million, ten thousand, one hundred ninety-seven".