201221002101199 has 2 divisors, whose sum is σ = 201221002101200. Its totient is φ = 201221002101198.

The previous prime is 201221002101191. The next prime is 201221002101247. The reversal of 201221002101199 is 991101200122102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201221002101199 - 2³ = 201221002101191 is a prime.

It is a super-2 number, since 2×201221002101199² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201221002101199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201221002101191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100610501050599 + 100610501050600.

It is an arithmetic number, because the mean of its divisors is an integer number (100610501050600).

Almost surely, 2^{201221002101199} is an apocalyptic number.

201221002101199 is a deficient number, since it is larger than the sum of its proper divisors (1).

201221002101199 is an equidigital number, since it uses as much as digits as its factorization.

201221002101199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 201221002101199 in words is "two hundred one trillion, two hundred twenty-one billion, two million, one hundred one thousand, one hundred ninety-nine".