213102211 has 8 divisors (see below), whose sum is σ = 243670880. Its totient is φ = 182564928.

The previous prime is 213102209. The next prime is 213102247. The reversal of 213102211 is 112201312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213102211 - 2¹ = 213102209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213102191 and 213102200.

It is not an unprimeable number, because it can be changed into a prime (213102811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9175 + ... + 22591.

It is an arithmetic number, because the mean of its divisors is an integer number (30458860).

Almost surely, 2^213102211 is an apocalyptic number.

213102211 is a deficient number, since it is larger than the sum of its proper divisors (30568669).

213102211 is a wasteful number, since it uses less digits than its factorization.

213102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15693.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 213102211 is about 14598.0207905044. The cubic root of 213102211 is about 597.3047730854.

Adding to 213102211 its reverse (112201312), we get a palindrome (325303523).

The spelling of 213102211 in words is "two hundred thirteen million, one hundred two thousand, two hundred eleven".