213211100212 has 12 divisors (see below), whose sum is σ = 407039373216. Its totient is φ = 96914136440.

The previous prime is 213211100107. The next prime is 213211100213. The reversal of 213211100212 is 212001112312.

It is a super-2 number, since 2×213211100212² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213211100213) 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, 2422853368 + ... + 2422853455.

It is an arithmetic number, because the mean of its divisors is an integer number (33919947768).

Almost surely, 2^213211100212 is an apocalyptic number.

213211100212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213211100212 is a deficient number, since it is larger than the sum of its proper divisors (193828273004).

213211100212 is a wasteful number, since it uses less digits than its factorization.

213211100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845706838 (or 4845706836 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 213211100212 its reverse (212001112312), we get a palindrome (425212212524).

The spelling of 213211100212 in words is "two hundred thirteen billion, two hundred eleven million, one hundred thousand, two hundred twelve".