202201221211 has 16 divisors (see below), whose sum is σ = 233610823008. Its totient is φ = 172967731200.

The previous prime is 202201221163. The next prime is 202201221217. The reversal of 202201221211 is 112122102202.

It is a happy number.

It is not a de Polignac number, because 202201221211 - 2¹⁵ = 202201188443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202201221217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 734371 + ... + 971443.

It is an arithmetic number, because the mean of its divisors is an integer number (14600676438).

Almost surely, 2^202201221211 is an apocalyptic number.

202201221211 is a deficient number, since it is larger than the sum of its proper divisors (31409601797).

202201221211 is a wasteful number, since it uses less digits than its factorization.

202201221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241662.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202201221211 its reverse (112122102202), we get a palindrome (314323323413).

The spelling of 202201221211 in words is "two hundred two billion, two hundred one million, two hundred twenty-one thousand, two hundred eleven".