212111364 has 48 divisors (see below), whose sum is σ = 528353280. Its totient is φ = 66034080.

The previous prime is 212111323. The next prime is 212111369. The reversal of 212111364 is 463111212.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 212111364.

It is not an unprimeable number, because it can be changed into a prime (212111369) 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, 9637 + ... + 22739.

It is an arithmetic number, because the mean of its divisors is an integer number (11007360).

Almost surely, 2^212111364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212111364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264176640).

212111364 is an abundant number, since it is smaller than the sum of its proper divisors (316241916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212111364 is a wasteful number, since it uses less digits than its factorization.

212111364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13200 (or 13198 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 212111364 is about 14564.0435319316. The cubic root of 212111364 is about 596.3775853094.

Adding to 212111364 its reverse (463111212), we get a palindrome (675222576).

The spelling of 212111364 in words is "two hundred twelve million, one hundred eleven thousand, three hundred sixty-four".