212232001 has 4 divisors (see below), whose sum is σ = 212396932. Its totient is φ = 212067072.

The previous prime is 212231977. The next prime is 212232049. The reversal of 212232001 is 100232212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 113209600 + 99022401 = 10640^2 + 9951^2 .

It is a cyclic number.

It is not a de Polignac number, because 212232001 - 2⁵ = 212231969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212232091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80520 + ... + 83113.

It is an arithmetic number, because the mean of its divisors is an integer number (53099233).

Almost surely, 2^212232001 is an apocalyptic number.

It is an amenable number.

212232001 is a deficient number, since it is larger than the sum of its proper divisors (164931).

212232001 is a wasteful number, since it uses less digits than its factorization.

212232001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164930.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 212232001 is about 14568.1845471562. The cubic root of 212232001 is about 596.4906258781.

Adding to 212232001 its reverse (100232212), we get a palindrome (312464213).

The spelling of 212232001 in words is "two hundred twelve million, two hundred thirty-two thousand, one".