223244013213 has 12 divisors (see below), whose sum is σ = 347268465180. Its totient is φ = 137380931136.

The previous prime is 223244013197. The next prime is 223244013227. The reversal of 223244013213 is 312310442322.

223244013213 is a `hidden beast` number, since 2 + 2 + 3 + 2 + 440 + 1 + 3 + 213 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 40023203364 + 183220809849 = 200058^2 + 428043^2 .

It is not a de Polignac number, because 223244013213 - 2⁴ = 223244013197 is a prime.

It is a super-3 number, since 3×223244013213³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223244018213) 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, 954034128 + ... + 954034361.

It is an arithmetic number, because the mean of its divisors is an integer number (28939038765).

Almost surely, 2^223244013213 is an apocalyptic number.

It is an amenable number.

223244013213 is a deficient number, since it is larger than the sum of its proper divisors (124024451967).

223244013213 is a wasteful number, since it uses less digits than its factorization.

223244013213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908068508 (or 1908068505 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 223244013213 its reverse (312310442322), we get a palindrome (535554455535).

The spelling of 223244013213 in words is "two hundred twenty-three billion, two hundred forty-four million, thirteen thousand, two hundred thirteen".