221298732199 has 2 divisors, whose sum is σ = 221298732200. Its totient is φ = 221298732198.

The previous prime is 221298732197. The next prime is 221298732247. The reversal of 221298732199 is 991237892122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221298732199 - 2¹ = 221298732197 is a prime.

Together with 221298732197, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221298732191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110649366099 + 110649366100.

It is an arithmetic number, because the mean of its divisors is an integer number (110649366100).

Almost surely, 2^221298732199 is an apocalyptic number.

221298732199 is a deficient number, since it is larger than the sum of its proper divisors (1).

221298732199 is an equidigital number, since it uses as much as digits as its factorization.

221298732199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 55.

The spelling of 221298732199 in words is "two hundred twenty-one billion, two hundred ninety-eight million, seven hundred thirty-two thousand, one hundred ninety-nine".