212221321233 has 8 divisors (see below), whose sum is σ = 287600479296. Its totient is φ = 139161522000.

The previous prime is 212221321223. The next prime is 212221321253. The reversal of 212221321233 is 332123122212.

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

It is not a de Polignac number, because 212221321233 - 2⁴ = 212221321217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212221321223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579839493 + ... + 579839858.

It is an arithmetic number, because the mean of its divisors is an integer number (35950059912).

Almost surely, 2^212221321233 is an apocalyptic number.

It is an amenable number.

212221321233 is a deficient number, since it is larger than the sum of its proper divisors (75379158063).

212221321233 is a wasteful number, since it uses less digits than its factorization.

212221321233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159679415.

The product of its digits is 1728, while the sum is 24.

Adding to 212221321233 its reverse (332123122212), we get a palindrome (544344443445).

The spelling of 212221321233 in words is "two hundred twelve billion, two hundred twenty-one million, three hundred twenty-one thousand, two hundred thirty-three".