223020103212 has 18 divisors (see below), whose sum is σ = 563745260988. Its totient is φ = 74340034392.

The previous prime is 223020103181. The next prime is 223020103253. The reversal of 223020103212 is 212301020322.

223020103212 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 (18).

It is a super-2 number, since 2×223020103212² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 5 ways as a sum of consecutive naturals, for example, 3097501398 + ... + 3097501469.

It is an arithmetic number, because the mean of its divisors is an integer number (31319181166).

Almost surely, 2^223020103212 is an apocalyptic number.

It is an amenable number.

223020103212 is an abundant number, since it is smaller than the sum of its proper divisors (340725157776).

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

223020103212 is a wasteful number, since it uses less digits than its factorization.

223020103212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6195002877 (or 6195002872 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 223020103212 its reverse (212301020322), we get a palindrome (435321123534).

The spelling of 223020103212 in words is "two hundred twenty-three billion, twenty million, one hundred three thousand, two hundred twelve".