221303010312211 has 4 divisors (see below), whose sum is σ = 221379242836752. Its totient is φ = 221226777787672.

The previous prime is 221303010312193. The next prime is 221303010312247. The reversal of 221303010312211 is 112213010303122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221303010312211 - 2⁹ = 221303010311699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221303010312011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38116257916 + ... + 38116263721.

It is an arithmetic number, because the mean of its divisors is an integer number (55344810709188).

Almost surely, 2^{221303010312211} is an apocalyptic number.

221303010312211 is a deficient number, since it is larger than the sum of its proper divisors (76232524541).

221303010312211 is an equidigital number, since it uses as much as digits as its factorization.

221303010312211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76232524540.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 221303010312211 its reverse (112213010303122), we get a palindrome (333516020615333).

The spelling of 221303010312211 in words is "two hundred twenty-one trillion, three hundred three billion, ten million, three hundred twelve thousand, two hundred eleven".