223444212013 has 32 divisors (see below), whose sum is σ = 250852239360. Its totient is φ = 197310072960.

The previous prime is 223444212011. The next prime is 223444212023. The reversal of 223444212013 is 310212444322.

It is not a de Polignac number, because 223444212013 - 2¹ = 223444212011 is a prime.

It is a super-2 number, since 2×223444212013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223444212011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55484506 + ... + 55488532.

It is an arithmetic number, because the mean of its divisors is an integer number (7839132480).

Almost surely, 2^223444212013 is an apocalyptic number.

It is an amenable number.

223444212013 is a deficient number, since it is larger than the sum of its proper divisors (27408027347).

223444212013 is a wasteful number, since it uses less digits than its factorization.

223444212013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5137.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 223444212013 its reverse (310212444322), we get a palindrome (533656656335).

The spelling of 223444212013 in words is "two hundred twenty-three billion, four hundred forty-four million, two hundred twelve thousand, thirteen".