213222123223121 has 8 divisors (see below), whose sum is σ = 214655015097600. Its totient is φ = 211789256294448.

The previous prime is 213222123223001. The next prime is 213222123223217. The reversal of 213222123223121 is 121322321222312.

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 213222123223121 - 2⁴⁶ = 142853379045457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213222123223321) 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, 11076770 + ... + 23433716.

It is an arithmetic number, because the mean of its divisors is an integer number (26831876887200).

Almost surely, 2^{213222123223121} is an apocalyptic number.

It is an amenable number.

213222123223121 is a deficient number, since it is larger than the sum of its proper divisors (1432891874479).

213222123223121 is a wasteful number, since it uses less digits than its factorization.

213222123223121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12472903.

The product of its digits is 6912, while the sum is 29.

Adding to 213222123223121 its reverse (121322321222312), we get a palindrome (334544444445433).

The spelling of 213222123223121 in words is "two hundred thirteen trillion, two hundred twenty-two billion, one hundred twenty-three million, two hundred twenty-three thousand, one hundred twenty-one".