211470213 has 4 divisors (see below), whose sum is σ = 281960288. Its totient is φ = 140980140.

The previous prime is 211470197. The next prime is 211470223. The reversal of 211470213 is 312074112.

211470213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 211470213 - 2⁴ = 211470197 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 211470213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211470223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35245033 + ... + 35245038.

It is an arithmetic number, because the mean of its divisors is an integer number (70490072).

Almost surely, 2^211470213 is an apocalyptic number.

It is an amenable number.

211470213 is a deficient number, since it is larger than the sum of its proper divisors (70490075).

211470213 is an equidigital number, since it uses as much as digits as its factorization.

211470213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70490074.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 211470213 is about 14542.0154380333. The cubic root of 211470213 is about 595.7760868186.

It can be divided in two parts, 2114 and 70213, that added together give a palindrome (72327).

The spelling of 211470213 in words is "two hundred eleven million, four hundred seventy thousand, two hundred thirteen".