202111222099 has 4 divisors (see below), whose sum is σ = 202112121240. Its totient is φ = 202110322960.

The previous prime is 202111222067. The next prime is 202111222127. The reversal of 202111222099 is 990222111202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 202111222099 - 2⁵ = 202111222067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202111222099.

It is not an unprimeable number, because it can be changed into a prime (202111222799) 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 in 3 ways as a sum of consecutive naturals, for example, 222684 + ... + 673654.

It is an arithmetic number, because the mean of its divisors is an integer number (50528030310).

Almost surely, 2^202111222099 is an apocalyptic number.

202111222099 is a deficient number, since it is larger than the sum of its proper divisors (899141).

202111222099 is an equidigital number, since it uses as much as digits as its factorization.

202111222099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899140.

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

The spelling of 202111222099 in words is "two hundred two billion, one hundred eleven million, two hundred twenty-two thousand, ninety-nine".