222222211999 has 2 divisors, whose sum is σ = 222222212000. Its totient is φ = 222222211998.

The previous prime is 222222211949. The next prime is 222222212033. The reversal of 222222211999 is 999112222222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222222211999 - 2⁹ = 222222211487 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222222211949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111111105999 + 111111106000.

It is an arithmetic number, because the mean of its divisors is an integer number (111111106000).

Almost surely, 2^222222211999 is an apocalyptic number.

222222211999 is a deficient number, since it is larger than the sum of its proper divisors (1).

222222211999 is an equidigital number, since it uses as much as digits as its factorization.

222222211999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 43.

The spelling of 222222211999 in words is "two hundred twenty-two billion, two hundred twenty-two million, two hundred eleven thousand, nine hundred ninety-nine".