221302303203213 has 16 divisors (see below), whose sum is σ = 328602086947200. Its totient is φ = 147198798478080.

The previous prime is 221302303203209. The next prime is 221302303203217. The reversal of 221302303203213 is 312302303203122.

221302303203213 is a `hidden beast` number, since 2 + 2 + 1 + 30 + 2 + 303 + 2 + 0 + 321 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (221302303203209) and next prime (221302303203217).

It is not a de Polignac number, because 221302303203213 - 2² = 221302303203209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221302303203217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9335274708 + ... + 9335298413.

It is an arithmetic number, because the mean of its divisors is an integer number (20537630434200).

Almost surely, 2^{221302303203213} is an apocalyptic number.

It is an amenable number.

221302303203213 is a deficient number, since it is larger than the sum of its proper divisors (107299783743987).

221302303203213 is a wasteful number, since it uses less digits than its factorization.

221302303203213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18670573569 (or 18670573563 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 221302303203213 its reverse (312302303203122), we get a palindrome (533604606406335).

Subtracting 221302303203213 from its reverse (312302303203122), we obtain a palindrome (90999999999909).

The spelling of 221302303203213 in words is "two hundred twenty-one trillion, three hundred two billion, three hundred three million, two hundred three thousand, two hundred thirteen".