212221323301 has 16 divisors (see below), whose sum is σ = 242010030528. Its totient is φ = 184357958400.

The previous prime is 212221323299. The next prime is 212221323323. The reversal of 212221323301 is 103323122212.

It is a cyclic number.

It is not a de Polignac number, because 212221323301 - 2¹ = 212221323299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212221323001) 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, 3231886 + ... + 3296896.

It is an arithmetic number, because the mean of its divisors is an integer number (15125626908).

Almost surely, 2^212221323301 is an apocalyptic number.

It is an amenable number.

212221323301 is a deficient number, since it is larger than the sum of its proper divisors (29788707227).

212221323301 is a wasteful number, since it uses less digits than its factorization.

212221323301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79812.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212221323301 its reverse (103323122212), we get a palindrome (315544445513).

The spelling of 212221323301 in words is "two hundred twelve billion, two hundred twenty-one million, three hundred twenty-three thousand, three hundred one".