221112220099 has 2 divisors, whose sum is σ = 221112220100. Its totient is φ = 221112220098.

The previous prime is 221112220097. The next prime is 221112220127. The reversal of 221112220099 is 990022211122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221112220099 - 2¹ = 221112220097 is a prime.

It is a super-2 number, since 2×221112220099² (a number of 23 digits) contains 22 as substring.

Together with 221112220097, it forms a pair of twin primes.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 221112220099.

It is not a weakly prime, because it can be changed into another prime (221112220097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110556110049 + 110556110050.

It is an arithmetic number, because the mean of its divisors is an integer number (110556110050).

Almost surely, 2^221112220099 is an apocalyptic number.

221112220099 is a deficient number, since it is larger than the sum of its proper divisors (1).

221112220099 is an equidigital number, since it uses as much as digits as its factorization.

221112220099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 221112220099 in words is "two hundred twenty-one billion, one hundred twelve million, two hundred twenty thousand, ninety-nine".