212130033 has 4 divisors (see below), whose sum is σ = 282840048. Its totient is φ = 141420020.

The previous prime is 212130031. The next prime is 212130047. The reversal of 212130033 is 330031212.

212130033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212130033 - 2¹ = 212130031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212129994 and 212130021.

It is not an unprimeable number, because it can be changed into a prime (212130031) 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, 35355003 + ... + 35355008.

It is an arithmetic number, because the mean of its divisors is an integer number (70710012).

Almost surely, 2^212130033 is an apocalyptic number.

It is an amenable number.

212130033 is a deficient number, since it is larger than the sum of its proper divisors (70710015).

212130033 is an equidigital number, since it uses as much as digits as its factorization.

212130033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70710014.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 212130033 is about 14564.6844456033. The cubic root of 212130033 is about 596.3950815377.

Adding to 212130033 its reverse (330031212), we get a palindrome (542161245).

The spelling of 212130033 in words is "two hundred twelve million, one hundred thirty thousand, thirty-three".