2212369 has 4 divisors (see below), whose sum is σ = 2222260. Its totient is φ = 2202480.

The previous prime is 2212361. The next prime is 2212387. The reversal of 2212369 is 9632122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9632122 = 2 ⋅4816061.

It can be written as a sum of positive squares in 2 ways, for example, as 831744 + 1380625 = 912^2 + 1175^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212369 - 2³ = 2212361 is a prime.

It is a super-2 number, since 2×2212369² = 9789153184322, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2² + 2⁸ + 1 + 2¹⁰ + 3³ + 6⁸ + 9⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4602 + ... + 5059.

It is an arithmetic number, because the mean of its divisors is an integer number (555565).

2^2212369 is an apocalyptic number.

It is an amenable number.

2212369 is a deficient number, since it is larger than the sum of its proper divisors (9891).

2212369 is an equidigital number, since it uses as much as digits as its factorization.

2212369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9890.

The product of its digits is 1296, while the sum is 25.

The square root of 2212369 is about 1487.4034422442. The cubic root of 2212369 is about 130.3024319714.

The spelling of 2212369 in words is "two million, two hundred twelve thousand, three hundred sixty-nine".