221200202212210 has 64 divisors (see below), whose sum is σ = 429412193683200. Its totient is φ = 81555121969920.

The previous prime is 221200202212193. The next prime is 221200202212219. The reversal of 221200202212210 is 12212202002122.

It is not an unprimeable number, because it can be changed into a prime (221200202212219) 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, 268921665 + ... + 269742955.

It is an arithmetic number, because the mean of its divisors is an integer number (6709565526300).

Almost surely, 2^{221200202212210} is an apocalyptic number.

221200202212210 is a deficient number, since it is larger than the sum of its proper divisors (208211991470990).

221200202212210 is a wasteful number, since it uses less digits than its factorization.

221200202212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824323.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221200202212210 its reverse (12212202002122), we get a palindrome (233412404214332).

The spelling of 221200202212210 in words is "two hundred twenty-one trillion, two hundred billion, two hundred two million, two hundred twelve thousand, two hundred ten".