212211379 has 4 divisors (see below), whose sum is σ = 212251360. Its totient is φ = 212171400.

The previous prime is 212211371. The next prime is 212211397. The reversal of 212211379 is 973112212.

212211379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212211379 - 2³ = 212211371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212211371) 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, 10539 + ... + 23140.

It is an arithmetic number, because the mean of its divisors is an integer number (53062840).

Almost surely, 2^212211379 is an apocalyptic number.

212211379 is a deficient number, since it is larger than the sum of its proper divisors (39981).

212211379 is an equidigital number, since it uses as much as digits as its factorization.

212211379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39980.

The product of its digits is 1512, while the sum is 28.

The square root of 212211379 is about 14567.4767547438. The cubic root of 212211379 is about 596.4713054676.

The spelling of 212211379 in words is "two hundred twelve million, two hundred eleven thousand, three hundred seventy-nine".