222222202120999 has 2 divisors, whose sum is σ = 222222202121000. Its totient is φ = 222222202120998.

The previous prime is 222222202120967. The next prime is 222222202121083. The reversal of 222222202120999 is 999021202222222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222222202120999 - 2⁵ = 222222202120967 is a prime.

It is a super-2 number, since 2×222222202120999² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222222202120949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111111101060499 + 111111101060500.

It is an arithmetic number, because the mean of its divisors is an integer number (111111101060500).

Almost surely, 2^{222222202120999} is an apocalyptic number.

222222202120999 is a deficient number, since it is larger than the sum of its proper divisors (1).

222222202120999 is an equidigital number, since it uses as much as digits as its factorization.

222222202120999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 222222202120999 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, two hundred two million, one hundred twenty thousand, nine hundred ninety-nine".