2212279 has 4 divisors (see below), whose sum is σ = 2235184. Its totient is φ = 2189376.

The previous prime is 2212277. The next prime is 2212297. The reversal of 2212279 is 9722122.

2212279 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 2212279 - 2¹ = 2212277 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 (2212271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11307 + ... + 11500.

It is an arithmetic number, because the mean of its divisors is an integer number (558796).

2^2212279 is an apocalyptic number.

2212279 is a deficient number, since it is larger than the sum of its proper divisors (22905).

2212279 is an equidigital number, since it uses as much as digits as its factorization.

2212279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22904.

The product of its digits is 1008, while the sum is 25.

The square root of 2212279 is about 1487.3731878718. The cubic root of 2212279 is about 130.3006650302.

It can be divided in two parts, 22122 and 79, that added together give a square (22201 = 149²).

The spelling of 2212279 in words is "two million, two hundred twelve thousand, two hundred seventy-nine".