212443033 has 16 divisors (see below), whose sum is σ = 246300480. Its totient is φ = 181723200.

The previous prime is 212443001. The next prime is 212443057. The reversal of 212443033 is 330344212.

It is a happy number.

It is not a de Polignac number, because 212443033 - 2⁵ = 212443001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212442995 and 212443013.

It is not an unprimeable number, because it can be changed into a prime (212443073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52078 + ... + 56008.

It is an arithmetic number, because the mean of its divisors is an integer number (15393780).

Almost surely, 2^212443033 is an apocalyptic number.

It is an amenable number.

212443033 is a deficient number, since it is larger than the sum of its proper divisors (33857447).

212443033 is an equidigital number, since it uses as much as digits as its factorization.

212443033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3993 (or 3959 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 212443033 is about 14575.4256541619. The cubic root of 212443033 is about 596.6882663688.

Adding to 212443033 its reverse (330344212), we get a palindrome (542787245).

The spelling of 212443033 in words is "two hundred twelve million, four hundred forty-three thousand, thirty-three".