212213133 has 12 divisors (see below), whose sum is σ = 334396608. Its totient is φ = 128613960.

The previous prime is 212213129. The next prime is 212213143. The reversal of 212213133 is 331312212.

212213133 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 212213133 - 2² = 212213129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212213143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1071685 + ... + 1071882.

It is an arithmetic number, because the mean of its divisors is an integer number (27866384).

Almost surely, 2^212213133 is an apocalyptic number.

It is an amenable number.

212213133 is a deficient number, since it is larger than the sum of its proper divisors (122183475).

212213133 is a wasteful number, since it uses less digits than its factorization.

212213133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143584 (or 2143581 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 212213133 is about 14567.5369572210. The cubic root of 212213133 is about 596.4729488099.

Adding to 212213133 its reverse (331312212), we get a palindrome (543525345).

The spelling of 212213133 in words is "two hundred twelve million, two hundred thirteen thousand, one hundred thirty-three".