212221102233 has 16 divisors (see below), whose sum is σ = 342407157120. Its totient is φ = 114135718656.

The previous prime is 212221102211. The next prime is 212221102237. The reversal of 212221102233 is 332201122212.

It is not a de Polignac number, because 212221102233 - 2²⁰ = 212220053657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (212221102237) 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 15 ways as a sum of consecutive naturals, for example, 297228078 + ... + 297228791.

It is an arithmetic number, because the mean of its divisors is an integer number (21400447320).

Almost surely, 2^212221102233 is an apocalyptic number.

It is an amenable number.

212221102233 is a deficient number, since it is larger than the sum of its proper divisors (130186054887).

212221102233 is a wasteful number, since it uses less digits than its factorization.

212221102233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594456896.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212221102233 its reverse (332201122212), we get a palindrome (544422224445).

The spelling of 212221102233 in words is "two hundred twelve billion, two hundred twenty-one million, one hundred two thousand, two hundred thirty-three".