223003111221 has 12 divisors (see below), whose sum is σ = 351398842080. Its totient is φ = 135153400680.

The previous prime is 223003111217. The next prime is 223003111267. The reversal of 223003111221 is 122111300322.

223003111221 is a `hidden beast` number, since 2 + 230 + 0 + 311 + 122 + 1 = 666.

It is not a de Polignac number, because 223003111221 - 2² = 223003111217 is a prime.

It is a super-2 number, since 2×223003111221² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223003111194 and 223003111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223003111421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1126278241 + ... + 1126278438.

It is an arithmetic number, because the mean of its divisors is an integer number (29283236840).

Almost surely, 2^223003111221 is an apocalyptic number.

It is an amenable number.

223003111221 is a deficient number, since it is larger than the sum of its proper divisors (128395730859).

223003111221 is a wasteful number, since it uses less digits than its factorization.

223003111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252556696 (or 2252556693 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 223003111221 its reverse (122111300322), we get a palindrome (345114411543).

The spelling of 223003111221 in words is "two hundred twenty-three billion, three million, one hundred eleven thousand, two hundred twenty-one".