212442033 has 16 divisors (see below), whose sum is σ = 291816000. Its totient is φ = 137387520.

The previous prime is 212442031. The next prime is 212442037. The reversal of 212442033 is 330244212.

It is not a de Polignac number, because 212442033 - 2¹ = 212442031 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212442031) 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, 17193 + ... + 26841.

It is an arithmetic number, because the mean of its divisors is an integer number (18238500).

Almost surely, 2^212442033 is an apocalyptic number.

It is an amenable number.

212442033 is a deficient number, since it is larger than the sum of its proper divisors (79373967).

212442033 is a wasteful number, since it uses less digits than its factorization.

212442033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9872.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 212442033 is about 14575.3913498060. The cubic root of 212442033 is about 596.6873301348.

Adding to 212442033 its reverse (330244212), we get a palindrome (542686245).

The spelling of 212442033 in words is "two hundred twelve million, four hundred forty-two thousand, thirty-three".