212333021211 has 24 divisors (see below), whose sum is σ = 306283414080. Its totient is φ = 130480556832.

The previous prime is 212333021177. The next prime is 212333021227. The reversal of 212333021211 is 112120333212.

It is a de Polignac number, because none of the positive numbers 2^k-212333021211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212333021281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1282501 + ... + 1438566.

It is an arithmetic number, because the mean of its divisors is an integer number (12761808920).

Almost surely, 2^212333021211 is an apocalyptic number.

212333021211 is a deficient number, since it is larger than the sum of its proper divisors (93950392869).

212333021211 is a wasteful number, since it uses less digits than its factorization.

212333021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721163 (or 2721126 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 212333021211 its reverse (112120333212), we get a palindrome (324453354423).

The spelling of 212333021211 in words is "two hundred twelve billion, three hundred thirty-three million, twenty-one thousand, two hundred eleven".