223130321221 has 8 divisors (see below), whose sum is σ = 241282350720. Its totient is φ = 205536815808.

The previous prime is 223130321179. The next prime is 223130321243. The reversal of 223130321221 is 122123031322.

223130321221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 223130321221 - 2¹⁵ = 223130288453 is a prime.

It is a super-3 number, since 3×223130321221³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223130321192 and 223130321201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223130321321) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 139630191 + ... + 139631788.

It is an arithmetic number, because the mean of its divisors is an integer number (30160293840).

Almost surely, 2^223130321221 is an apocalyptic number.

It is an amenable number.

223130321221 is a deficient number, since it is larger than the sum of its proper divisors (18152029499).

223130321221 is a wasteful number, since it uses less digits than its factorization.

223130321221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279262043.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 223130321221 its reverse (122123031322), we get a palindrome (345253352543).

The spelling of 223130321221 in words is "two hundred twenty-three billion, one hundred thirty million, three hundred twenty-one thousand, two hundred twenty-one".