2121201030199 has 2 divisors, whose sum is σ = 2121201030200. Its totient is φ = 2121201030198.

The previous prime is 2121201030149. The next prime is 2121201030257. The reversal of 2121201030199 is 9910301021212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121201030199 - 2¹⁵ = 2121200997431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2121201030199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121201030149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060600515099 + 1060600515100.

It is an arithmetic number, because the mean of its divisors is an integer number (1060600515100).

Almost surely, 2^{2121201030199} is an apocalyptic number.

2121201030199 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121201030199 is an equidigital number, since it uses as much as digits as its factorization.

2121201030199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 31.

The spelling of 2121201030199 in words is "two trillion, one hundred twenty-one billion, two hundred one million, thirty thousand, one hundred ninety-nine".