212233211121 has 16 divisors (see below), whose sum is σ = 290718779904. Its totient is φ = 137620675584.

The previous prime is 212233211117. The next prime is 212233211159. The reversal of 212233211121 is 121112332212.

212233211121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212233211121 - 2² = 212233211117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212233211161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43456 + ... + 652958.

It is an arithmetic number, because the mean of its divisors is an integer number (18169923744).

Almost surely, 2^212233211121 is an apocalyptic number.

It is an amenable number.

212233211121 is a deficient number, since it is larger than the sum of its proper divisors (78485568783).

212233211121 is a wasteful number, since it uses less digits than its factorization.

212233211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612680.

The product of its digits is 288, while the sum is 21.

Adding to 212233211121 its reverse (121112332212), we get a palindrome (333345543333).

The spelling of 212233211121 in words is "two hundred twelve billion, two hundred thirty-three million, two hundred eleven thousand, one hundred twenty-one".