212132333 has 4 divisors (see below), whose sum is σ = 242436960. Its totient is φ = 181827708.

The previous prime is 212132281. The next prime is 212132339. The reversal of 212132333 is 333231212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212132333 - 2⁸ = 212132077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212132339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15152303 + ... + 15152316.

It is an arithmetic number, because the mean of its divisors is an integer number (60609240).

Almost surely, 2^212132333 is an apocalyptic number.

It is an amenable number.

212132333 is a deficient number, since it is larger than the sum of its proper divisors (30304627).

212132333 is an equidigital number, since it uses as much as digits as its factorization.

212132333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30304626.

The product of its digits is 648, while the sum is 20.

The square root of 212132333 is about 14564.7634035023. The cubic root of 212132333 is about 596.3972369825.

Adding to 212132333 its reverse (333231212), we get a palindrome (545363545).

The spelling of 212132333 in words is "two hundred twelve million, one hundred thirty-two thousand, three hundred thirty-three".