212316371 has 4 divisors (see below), whose sum is σ = 215004000. Its totient is φ = 209628744.

The previous prime is 212316331. The next prime is 212316373. The reversal of 212316371 is 173613212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212316371 - 2²⁶ = 145207507 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 212316371.

It is not an unprimeable number, because it can be changed into a prime (212316373) 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, 1343696 + ... + 1343853.

It is an arithmetic number, because the mean of its divisors is an integer number (53751000).

Almost surely, 2^212316371 is an apocalyptic number.

212316371 is a deficient number, since it is larger than the sum of its proper divisors (2687629).

212316371 is an equidigital number, since it uses as much as digits as its factorization.

212316371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2687628.

The product of its digits is 1512, while the sum is 26.

The square root of 212316371 is about 14571.0799531126. The cubic root of 212316371 is about 596.5696577026.

Adding to 212316371 its reverse (173613212), we get a palindrome (385929583).

The spelling of 212316371 in words is "two hundred twelve million, three hundred sixteen thousand, three hundred seventy-one".