213211101 has 12 divisors (see below), whose sum is σ = 287165216. Its totient is φ = 140713200.

The previous prime is 213211099. The next prime is 213211139. The reversal of 213211101 is 101112312.

It is not a de Polignac number, because 213211101 - 2¹ = 213211099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213211151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27120 + ... + 34086.

Almost surely, 2^213211101 is an apocalyptic number.

It is an amenable number.

213211101 is a deficient number, since it is larger than the sum of its proper divisors (73954115).

213211101 is an equidigital number, since it uses as much as digits as its factorization.

213211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7172 (or 7071 counting only the distinct ones).

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

The square root of 213211101 is about 14601.7499293749. The cubic root of 213211101 is about 597.4064917889.

Adding to 213211101 its reverse (101112312), we get a palindrome (314323413).

It can be divided in two parts, 213211 and 101, that added together give a palindrome (213312).

The spelling of 213211101 in words is "two hundred thirteen million, two hundred eleven thousand, one hundred one".