2211243213 has 4 divisors (see below), whose sum is σ = 2948324288. Its totient is φ = 1474162140.

The previous prime is 2211243211. The next prime is 2211243217. The reversal of 2211243213 is 3123421122.

2211243213 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2211243213 - 2¹ = 2211243211 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 2211243213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211243211) 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, 368540533 + ... + 368540538.

It is an arithmetic number, because the mean of its divisors is an integer number (737081072).

Almost surely, 2^2211243213 is an apocalyptic number.

It is an amenable number.

2211243213 is a deficient number, since it is larger than the sum of its proper divisors (737081075).

2211243213 is an equidigital number, since it uses as much as digits as its factorization.

2211243213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737081074.

The product of its digits is 576, while the sum is 21.

The square root of 2211243213 is about 47023.8579127659. The cubic root of 2211243213 is about 1302.8032630502.

Adding to 2211243213 its reverse (3123421122), we get a palindrome (5334664335).

The spelling of 2211243213 in words is "two billion, two hundred eleven million, two hundred forty-three thousand, two hundred thirteen".