212023133 has 8 divisors (see below), whose sum is σ = 256565952. Its totient is φ = 171043776.

The previous prime is 212023121. The next prime is 212023151. The reversal of 212023133 is 331320212.

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

It is a cyclic number.

It is not a de Polignac number, because 212023133 - 2⁴ = 212023117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212023183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890735 + ... + 890972.

It is an arithmetic number, because the mean of its divisors is an integer number (32070744).

Almost surely, 2^212023133 is an apocalyptic number.

It is an amenable number.

212023133 is a deficient number, since it is larger than the sum of its proper divisors (44542819).

212023133 is a wasteful number, since it uses less digits than its factorization.

212023133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781731.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 212023133 is about 14561.0141473731. The cubic root of 212023133 is about 596.2948830168.

Adding to 212023133 its reverse (331320212), we get a palindrome (543343345).

The spelling of 212023133 in words is "two hundred twelve million, twenty-three thousand, one hundred thirty-three".