200111122223 has 4 divisors (see below), whose sum is σ = 200112275160. Its totient is φ = 200109969288.

The previous prime is 200111122171. The next prime is 200111122229. The reversal of 200111122223 is 322221111002.

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 200111122223 - 2²⁸ = 199842686767 is a prime.

It is a super-2 number, since 2×200111122223² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200111122229) 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 in 3 ways as a sum of consecutive naturals, for example, 257165 + ... + 682902.

It is an arithmetic number, because the mean of its divisors is an integer number (50028068790).

Almost surely, 2^200111122223 is an apocalyptic number.

200111122223 is a deficient number, since it is larger than the sum of its proper divisors (1152937).

200111122223 is an equidigital number, since it uses as much as digits as its factorization.

200111122223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152936.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 200111122223 its reverse (322221111002), we get a palindrome (522332233225).

The spelling of 200111122223 in words is "two hundred billion, one hundred eleven million, one hundred twenty-two thousand, two hundred twenty-three".