201199227281197 has 2 divisors, whose sum is σ = 201199227281198. Its totient is φ = 201199227281196.

The previous prime is 201199227281179. The next prime is 201199227281281. The reversal of 201199227281197 is 791182722991102.

Together with previous prime (201199227281179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187509367880836 + 13689859400361 = 13693406^2 + 3699981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201199227281197 is a prime.

It is a super-2 number, since 2×201199227281197² (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 (201199227281177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100599613640598 + 100599613640599.

It is an arithmetic number, because the mean of its divisors is an integer number (100599613640599).

Almost surely, 2^{201199227281197} is an apocalyptic number.

It is an amenable number.

201199227281197 is a deficient number, since it is larger than the sum of its proper divisors (1).

201199227281197 is an equidigital number, since it uses as much as digits as its factorization.

201199227281197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 61.

The spelling of 201199227281197 in words is "two hundred one trillion, one hundred ninety-nine billion, two hundred twenty-seven million, two hundred eighty-one thousand, one hundred ninety-seven".