2212312223 has 4 divisors (see below), whose sum is σ = 2413431528. Its totient is φ = 2011192920.

The previous prime is 2212312213. The next prime is 2212312229. The reversal of 2212312223 is 3222132122.

It is a happy number.

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

It is not a de Polignac number, because 2212312223 - 2¹⁸ = 2212050079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2212312195 and 2212312204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212312229) 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, 100559636 + ... + 100559657.

It is an arithmetic number, because the mean of its divisors is an integer number (603357882).

Almost surely, 2^2212312223 is an apocalyptic number.

2212312223 is a deficient number, since it is larger than the sum of its proper divisors (201119305).

2212312223 is a wasteful number, since it uses less digits than its factorization.

2212312223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201119304.

The product of its digits is 576, while the sum is 20.

The square root of 2212312223 is about 47035.2232162238. The cubic root of 2212312223 is about 1303.0131729230.

Adding to 2212312223 its reverse (3222132122), we get a palindrome (5434444345).

The spelling of 2212312223 in words is "two billion, two hundred twelve million, three hundred twelve thousand, two hundred twenty-three".