200221123321 has 16 divisors (see below), whose sum is σ = 213539430400. Its totient is φ = 187183386000.

The previous prime is 200221123247. The next prime is 200221123337. The reversal of 200221123321 is 123321122002.

It is a cyclic number.

It is not a de Polignac number, because 200221123321 - 2¹¹ = 200221121273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200221127321) 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 15 ways as a sum of consecutive naturals, for example, 2894266 + ... + 2962636.

It is an arithmetic number, because the mean of its divisors is an integer number (13346214400).

Almost surely, 2^200221123321 is an apocalyptic number.

It is an amenable number.

200221123321 is a deficient number, since it is larger than the sum of its proper divisors (13318307079).

200221123321 is a wasteful number, since it uses less digits than its factorization.

200221123321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70420.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 200221123321 its reverse (123321122002), we get a palindrome (323542245323).

The spelling of 200221123321 in words is "two hundred billion, two hundred twenty-one million, one hundred twenty-three thousand, three hundred twenty-one".