212200001 has 32 divisors (see below), whose sum is σ = 255467520. Its totient is φ = 174265344.

The previous prime is 212199979. The next prime is 212200007. The reversal of 212200001 is 100002212.

It is a cyclic number.

It is not a de Polignac number, because 212200001 - 2⁶ = 212199937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212200007) 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 31 ways as a sum of consecutive naturals, for example, 553856 + ... + 554238.

It is an arithmetic number, because the mean of its divisors is an integer number (7983360).

Almost surely, 2^212200001 is an apocalyptic number.

It is an amenable number.

212200001 is a deficient number, since it is larger than the sum of its proper divisors (43267519).

212200001 is a wasteful number, since it uses less digits than its factorization.

212200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 212200001 is about 14567.0862220281. The cubic root of 212200001 is about 596.4606450719.

Adding to 212200001 its reverse (100002212), we get a palindrome (312202213).

It can be divided in two parts, 21 and 2200001, that added together give a palindrome (2200022).

The spelling of 212200001 in words is "two hundred twelve million, two hundred thousand, one".