221201200210 has 8 divisors (see below), whose sum is σ = 398162160396. Its totient is φ = 88480480080.

The previous prime is 221201200177. The next prime is 221201200223. The reversal of 221201200210 is 12002102122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 213073636801 + 8127563409 = 461599^2 + 90153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 11060060001 + ... + 11060060020.

Almost surely, 2^221201200210 is an apocalyptic number.

221201200210 is a deficient number, since it is larger than the sum of its proper divisors (176960960186).

221201200210 is a wasteful number, since it uses less digits than its factorization.

221201200210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22120120028.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 221201200210 its reverse (12002102122), we get a palindrome (233203302332).

The spelling of 221201200210 in words is "two hundred twenty-one billion, two hundred one million, two hundred thousand, two hundred ten".