2123223213 has 8 divisors (see below), whose sum is σ = 2833616800. Its totient is φ = 1414155888.

The previous prime is 2123223199. The next prime is 2123223257. The reversal of 2123223213 is 3123223212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2123223213 - 2¹² = 2123219117 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 2123223213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123223413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327823 + ... + 334236.

It is an arithmetic number, because the mean of its divisors is an integer number (354202100).

Almost surely, 2^2123223213 is an apocalyptic number.

It is an amenable number.

2123223213 is a deficient number, since it is larger than the sum of its proper divisors (710393587).

2123223213 is a wasteful number, since it uses less digits than its factorization.

2123223213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663131.

The product of its digits is 864, while the sum is 21.

The square root of 2123223213 is about 46078.4462954210. The cubic root of 2123223213 is about 1285.2823722999.

Adding to 2123223213 its reverse (3123223212), we get a palindrome (5246446425).

Subtracting 2123223213 from its reverse (3123223212), we obtain a palindrome (999999999).

The spelling of 2123223213 in words is "two billion, one hundred twenty-three million, two hundred twenty-three thousand, two hundred thirteen".