2243212013 has 6 divisors (see below), whose sum is σ = 2609450766. Its totient is φ = 1922753112.

The previous prime is 2243212001. The next prime is 2243212019. The reversal of 2243212013 is 3102123422.

It can be written as a sum of positive squares in only one way, i.e., 1807780324 + 435431689 = 42518^2 + 20867^2 .

It is not a de Polignac number, because 2243212013 - 2¹⁸ = 2242949869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243212019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22889870 + ... + 22889967.

It is an arithmetic number, because the mean of its divisors is an integer number (434908461).

Almost surely, 2^2243212013 is an apocalyptic number.

It is an amenable number.

2243212013 is a deficient number, since it is larger than the sum of its proper divisors (366238753).

2243212013 is an equidigital number, since it uses as much as digits as its factorization.

2243212013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45779851 (or 45779844 counting only the distinct ones).

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

The square root of 2243212013 is about 47362.5591897228. The cubic root of 2243212013 is about 1309.0516246429.

Adding to 2243212013 its reverse (3102123422), we get a palindrome (5345335435).

The spelling of 2243212013 in words is "two billion, two hundred forty-three million, two hundred twelve thousand, thirteen".