221211200202 has 16 divisors (see below), whose sum is σ = 442585148160. Its totient is φ = 73709942112.

The previous prime is 221211200179. The next prime is 221211200213. The reversal of 221211200202 is 202002112122.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6763483 + ... + 6796110.

It is an arithmetic number, because the mean of its divisors is an integer number (27661571760).

Almost surely, 2^221211200202 is an apocalyptic number.

221211200202 is an abundant number, since it is smaller than the sum of its proper divisors (221373947958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221211200202 is a wasteful number, since it uses less digits than its factorization.

221211200202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13562317.

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

Adding to 221211200202 its reverse (202002112122), we get a palindrome (423213312324).

The spelling of 221211200202 in words is "two hundred twenty-one billion, two hundred eleven million, two hundred thousand, two hundred two".