200221122211 has 4 divisors (see below), whose sum is σ = 218423042424. Its totient is φ = 182019202000.

The previous prime is 200221122151. The next prime is 200221122217. The reversal of 200221122211 is 112221122002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200221122211 - 2⁹ = 200221121699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200221122217) 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, 9100960090 + ... + 9100960111.

It is an arithmetic number, because the mean of its divisors is an integer number (54605760606).

Almost surely, 2^200221122211 is an apocalyptic number.

200221122211 is a deficient number, since it is larger than the sum of its proper divisors (18201920213).

200221122211 is a wasteful number, since it uses less digits than its factorization.

200221122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18201920212.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 200221122211 its reverse (112221122002), we get a palindrome (312442244213).

The spelling of 200221122211 in words is "two hundred billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred eleven".