212222022210221 has 8 divisors (see below), whose sum is σ = 212581656360960. Its totient is φ = 211862438792928.

The previous prime is 212222022210199. The next prime is 212222022210227. The reversal of 212222022210221 is 122012220222212.

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 212222022210221 - 2¹⁴ = 212222022193837 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 (212222022210227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4305431 + ... + 21047108.

It is an arithmetic number, because the mean of its divisors is an integer number (26572707045120).

Almost surely, 2^{212222022210221} is an apocalyptic number.

It is an amenable number.

212222022210221 is a deficient number, since it is larger than the sum of its proper divisors (359634150739).

212222022210221 is a wasteful number, since it uses less digits than its factorization.

212222022210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25366723.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 212222022210221 its reverse (122012220222212), we get a palindrome (334234242432433).

The spelling of 212222022210221 in words is "two hundred twelve trillion, two hundred twenty-two billion, twenty-two million, two hundred ten thousand, two hundred twenty-one".