223321220012 has 12 divisors (see below), whose sum is σ = 426340511016. Its totient is φ = 101509645440.

The previous prime is 223321220011. The next prime is 223321220029. The reversal of 223321220012 is 210022123322.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (223321220011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2537741093 + ... + 2537741180.

It is an arithmetic number, because the mean of its divisors is an integer number (35528375918).

Almost surely, 2^223321220012 is an apocalyptic number.

223321220012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

223321220012 is a deficient number, since it is larger than the sum of its proper divisors (203019291004).

223321220012 is a wasteful number, since it uses less digits than its factorization.

223321220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5075482288 (or 5075482286 counting only the distinct ones).

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

Adding to 223321220012 its reverse (210022123322), we get a palindrome (433343343334).

The spelling of 223321220012 in words is "two hundred twenty-three billion, three hundred twenty-one million, two hundred twenty thousand, twelve".