2215442213 has 4 divisors (see below), whose sum is σ = 2224268928. Its totient is φ = 2206615500.

The previous prime is 2215442197. The next prime is 2215442221. The reversal of 2215442213 is 3122445122.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3122445122 = 2 ⋅1561222561.

It is a cyclic number.

It is not a de Polignac number, because 2215442213 - 2⁴ = 2215442197 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 (2215442233) 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, 4412981 + ... + 4413482.

It is an arithmetic number, because the mean of its divisors is an integer number (556067232).

Almost surely, 2^2215442213 is an apocalyptic number.

It is an amenable number.

2215442213 is a deficient number, since it is larger than the sum of its proper divisors (8826715).

2215442213 is an equidigital number, since it uses as much as digits as its factorization.

2215442213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8826714.

The product of its digits is 3840, while the sum is 26.

The square root of 2215442213 is about 47068.4842861973. The cubic root of 2215442213 is about 1303.6273864565.

Adding to 2215442213 its reverse (3122445122), we get a palindrome (5337887335).

The spelling of 2215442213 in words is "two billion, two hundred fifteen million, four hundred forty-two thousand, two hundred thirteen".