200212201221 has 16 divisors (see below), whose sum is σ = 267823819200. Its totient is φ = 133038005760.

The previous prime is 200212201207. The next prime is 200212201247. The reversal of 200212201221 is 122102212002.

It is not a de Polignac number, because 200212201221 - 2¹⁹ = 200211676933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200212201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200212202221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2612181 + ... + 2687733.

It is an arithmetic number, because the mean of its divisors is an integer number (16738988700).

Almost surely, 2^200212201221 is an apocalyptic number.

It is an amenable number.

200212201221 is a deficient number, since it is larger than the sum of its proper divisors (67611617979).

200212201221 is a wasteful number, since it uses less digits than its factorization.

200212201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78436.

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

Adding to 200212201221 its reverse (122102212002), we get a palindrome (322314413223).

The spelling of 200212201221 in words is "two hundred billion, two hundred twelve million, two hundred one thousand, two hundred twenty-one".