213210001 has 16 divisors (see below), whose sum is σ = 237139200. Its totient is φ = 190850688.

The previous prime is 213209999. The next prime is 213210017. The reversal of 213210001 is 100012312.

213210001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 213210001 - 2¹ = 213209999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213210001.

It is not an unprimeable number, because it can be changed into a prime (213210071) 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, 21781 + ... + 30013.

It is an arithmetic number, because the mean of its divisors is an integer number (14821200).

Almost surely, 2^213210001 is an apocalyptic number.

It is an amenable number.

213210001 is a deficient number, since it is larger than the sum of its proper divisors (23929199).

213210001 is a wasteful number, since it uses less digits than its factorization.

213210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8328.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 213210001 is about 14601.7122626081. The cubic root of 213210001 is about 597.4054644060.

Adding to 213210001 its reverse (100012312), we get a palindrome (313222313).

The spelling of 213210001 in words is "two hundred thirteen million, two hundred ten thousand, one".