223221202212 has 12 divisors (see below), whose sum is σ = 520849471856. Its totient is φ = 74407067400.

The previous prime is 223221202199. The next prime is 223221202261. The reversal of 223221202212 is 212202122322.

223221202212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×223221202212³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9300883414 + ... + 9300883437.

Almost surely, 2^223221202212 is an apocalyptic number.

It is an amenable number.

223221202212 is an abundant number, since it is smaller than the sum of its proper divisors (297628269644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223221202212 is a wasteful number, since it uses less digits than its factorization.

223221202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18601766858 (or 18601766856 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 223221202212 its reverse (212202122322), we get a palindrome (435423324534).

The spelling of 223221202212 in words is "two hundred twenty-three billion, two hundred twenty-one million, two hundred two thousand, two hundred twelve".