212301132333221 has 4 divisors (see below), whose sum is σ = 212320001878944. Its totient is φ = 212282262787500.

The previous prime is 212301132333193. The next prime is 212301132333299. The reversal of 212301132333221 is 122333231103212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212301132333221 - 2²⁶ = 212301065224357 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 (212301132333421) by changing a digit.

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, 9434755985 + ... + 9434778486.

It is an arithmetic number, because the mean of its divisors is an integer number (53080000469736).

Almost surely, 2^{212301132333221} is an apocalyptic number.

It is an amenable number.

212301132333221 is a deficient number, since it is larger than the sum of its proper divisors (18869545723).

212301132333221 is a wasteful number, since it uses less digits than its factorization.

212301132333221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18869545722.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 212301132333221 its reverse (122333231103212), we get a palindrome (334634363436433).

The spelling of 212301132333221 in words is "two hundred twelve trillion, three hundred one billion, one hundred thirty-two million, three hundred thirty-three thousand, two hundred twenty-one".