200202201221 has 16 divisors (see below), whose sum is σ = 230910082560. Its totient is φ = 171663335280.

The previous prime is 200202201209. The next prime is 200202201229. The reversal of 200202201221 is 122102202002.

It is a cyclic number.

It is not a de Polignac number, because 200202201221 - 2²⁶ = 200135092357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200202201196 and 200202201205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200202201229) 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, 2062481 + ... + 2157366.

It is an arithmetic number, because the mean of its divisors is an integer number (14431880160).

Almost surely, 2^200202201221 is an apocalyptic number.

It is an amenable number.

200202201221 is a deficient number, since it is larger than the sum of its proper divisors (30707881339).

200202201221 is a wasteful number, since it uses less digits than its factorization.

200202201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4220104.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 200202201221 its reverse (122102202002), we get a palindrome (322304403223).

The spelling of 200202201221 in words is "two hundred billion, two hundred two million, two hundred one thousand, two hundred twenty-one".