2221121022199 has 2 divisors, whose sum is σ = 2221121022200. Its totient is φ = 2221121022198.

The previous prime is 2221121022191. The next prime is 2221121022271. The reversal of 2221121022199 is 9912201211222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221121022199 - 2³ = 2221121022191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221121022191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110560511099 + 1110560511100.

It is an arithmetic number, because the mean of its divisors is an integer number (1110560511100).

Almost surely, 2^{2221121022199} is an apocalyptic number.

2221121022199 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221121022199 is an equidigital number, since it uses as much as digits as its factorization.

2221121022199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 2221121022199 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-one million, twenty-two thousand, one hundred ninety-nine".