200220211221 has 32 divisors (see below), whose sum is σ = 276501012480. Its totient is φ = 128739537600.

The previous prime is 200220211199. The next prime is 200220211231. The reversal of 200220211221 is 122112022002.

It is not a de Polignac number, because 200220211221 - 2¹⁵ = 200220178453 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 200220211221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200220211231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43685296 + ... + 43689878.

It is an arithmetic number, because the mean of its divisors is an integer number (8640656640).

Almost surely, 2^200220211221 is an apocalyptic number.

It is an amenable number.

200220211221 is a deficient number, since it is larger than the sum of its proper divisors (76280801259).

200220211221 is a wasteful number, since it uses less digits than its factorization.

200220211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6097.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 200220211221 its reverse (122112022002), we get a palindrome (322332233223).

The spelling of 200220211221 in words is "two hundred billion, two hundred twenty million, two hundred eleven thousand, two hundred twenty-one".