212232501 has 16 divisors (see below), whose sum is σ = 338605120. Its totient is φ = 130604400.

The previous prime is 212232491. The next prime is 212232509. The reversal of 212232501 is 105232212.

212232501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212232501 - 2⁷ = 212232373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212232509) 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, 301975 + ... + 302676.

It is an arithmetic number, because the mean of its divisors is an integer number (21162820).

Almost surely, 2^212232501 is an apocalyptic number.

It is an amenable number.

212232501 is a deficient number, since it is larger than the sum of its proper divisors (126372619).

212232501 is a wasteful number, since it uses less digits than its factorization.

212232501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604673 (or 604667 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 212232501 is about 14568.2017078293. The cubic root of 212232501 is about 596.4910943043.

Adding to 212232501 its reverse (105232212), we get a palindrome (317464713).

The spelling of 212232501 in words is "two hundred twelve million, two hundred thirty-two thousand, five hundred one".