223212220203 has 8 divisors (see below), whose sum is σ = 340132907008. Its totient is φ = 127549840104.

The previous prime is 223212220201. The next prime is 223212220211. The reversal of 223212220203 is 302022212322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 223212220203 - 2¹ = 223212220201 is a prime.

It is a super-3 number, since 3×223212220203³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 10629153343 = 223212220203 / (2 + 2 + 3 + 2 + 1 + 2 + 2 + 2 + 0 + 2 + 0 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223212220203.

It is not an unprimeable number, because it can be changed into a prime (223212220201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5314576651 + ... + 5314576692.

It is an arithmetic number, because the mean of its divisors is an integer number (42516613376).

Almost surely, 2^223212220203 is an apocalyptic number.

223212220203 is a deficient number, since it is larger than the sum of its proper divisors (116920686805).

223212220203 is a wasteful number, since it uses less digits than its factorization.

223212220203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10629153353.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 223212220203 its reverse (302022212322), we get a palindrome (525234432525).

The spelling of 223212220203 in words is "two hundred twenty-three billion, two hundred twelve million, two hundred twenty thousand, two hundred three".