200112221 has 4 divisors (see below), whose sum is σ = 200254272. Its totient is φ = 199970172.

The previous prime is 200112203. The next prime is 200112251. The reversal of 200112221 is 122211002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200112221 - 2²⁶ = 133003357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200112251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68891 + ... + 71736.

It is an arithmetic number, because the mean of its divisors is an integer number (50063568).

Almost surely, 2^200112221 is an apocalyptic number.

It is an amenable number.

200112221 is a deficient number, since it is larger than the sum of its proper divisors (142051).

200112221 is a wasteful number, since it uses less digits than its factorization.

200112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142050.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 200112221 is about 14146.1026788300. The cubic root of 200112221 is about 584.9129059228.

Adding to 200112221 its reverse (122211002), we get a palindrome (322323223).

The spelling of 200112221 in words is "two hundred million, one hundred twelve thousand, two hundred twenty-one".