2213422731 has 12 divisors (see below), whose sum is σ = 3443102208. Its totient is φ = 1362106224.

The previous prime is 2213422703. The next prime is 2213422781. The reversal of 2213422731 is 1372243122.

2213422731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2213422731 - 2¹⁵ = 2213389963 is a prime.

It is a super-2 number, since 2×2213422731² = 9798480372214996722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2213422695 and 2213422704.

It is not an unprimeable number, because it can be changed into a prime (2213422781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9458955 + ... + 9459188.

It is an arithmetic number, because the mean of its divisors is an integer number (286925184).

Almost surely, 2^2213422731 is an apocalyptic number.

2213422731 is a deficient number, since it is larger than the sum of its proper divisors (1229679477).

2213422731 is a wasteful number, since it uses less digits than its factorization.

2213422731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18918162 (or 18918159 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 2213422731 is about 47047.0268029766. The cubic root of 2213422731 is about 1303.2311597105.

Adding to 2213422731 its reverse (1372243122), we get a palindrome (3585665853).

The spelling of 2213422731 in words is "two billion, two hundred thirteen million, four hundred twenty-two thousand, seven hundred thirty-one".