200221111221 has 64 divisors (see below), whose sum is σ = 286744043520. Its totient is φ = 124042849280.

The previous prime is 200221111219. The next prime is 200221111309. The reversal of 200221111221 is 122111122002.

It is a cyclic number.

It is not a de Polignac number, because 200221111221 - 2¹ = 200221111219 is a prime.

It is a super-2 number, since 2×200221111221² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 200221111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200221113221) 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 63 ways as a sum of consecutive naturals, for example, 172158586 + ... + 172159748.

It is an arithmetic number, because the mean of its divisors is an integer number (4480375680).

Almost surely, 2^200221111221 is an apocalyptic number.

It is an amenable number.

200221111221 is a deficient number, since it is larger than the sum of its proper divisors (86522932299).

200221111221 is a wasteful number, since it uses less digits than its factorization.

200221111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 200221111221 its reverse (122111122002), we get a palindrome (322332233223).

The spelling of 200221111221 in words is "two hundred billion, two hundred twenty-one million, one hundred eleven thousand, two hundred twenty-one".