201221213323213 has 8 divisors (see below), whose sum is σ = 213057879196032. Its totient is φ = 189384561218496.

The previous prime is 201221213323199. The next prime is 201221213323297. The reversal of 201221213323213 is 312323312122102.

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

It is a cyclic number.

It is not a de Polignac number, because 201221213323213 - 2⁴¹ = 199022190067661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201221213323913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54962956 + ... + 58509562.

It is an arithmetic number, because the mean of its divisors is an integer number (26632234899504).

Almost surely, 2^{201221213323213} is an apocalyptic number.

It is an amenable number.

201221213323213 is a deficient number, since it is larger than the sum of its proper divisors (11836665872819).

201221213323213 is a wasteful number, since it uses less digits than its factorization.

201221213323213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6884051.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 201221213323213 its reverse (312323312122102), we get a palindrome (513544525445315).

The spelling of 201221213323213 in words is "two hundred one trillion, two hundred twenty-one billion, two hundred thirteen million, three hundred twenty-three thousand, two hundred thirteen".