223231300221 has 4 divisors (see below), whose sum is σ = 297641733632. Its totient is φ = 148820866812.

The previous prime is 223231300211. The next prime is 223231300249. The reversal of 223231300221 is 122003132322.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 223231300221 - 2⁷ = 223231300093 is a prime.

It is a super-3 number, since 3×223231300221³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223231300211) 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, 37205216701 + ... + 37205216706.

It is an arithmetic number, because the mean of its divisors is an integer number (74410433408).

Almost surely, 2^223231300221 is an apocalyptic number.

It is an amenable number.

223231300221 is a deficient number, since it is larger than the sum of its proper divisors (74410433411).

223231300221 is an equidigital number, since it uses as much as digits as its factorization.

223231300221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74410433410.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 223231300221 its reverse (122003132322), we get a palindrome (345234432543).

The spelling of 223231300221 in words is "two hundred twenty-three billion, two hundred thirty-one million, three hundred thousand, two hundred twenty-one".