223202240221 has 4 divisors (see below), whose sum is σ = 232906685472. Its totient is φ = 213497794972.

The previous prime is 223202240201. The next prime is 223202240249. The reversal of 223202240221 is 122042202322.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122042202322 = 2 ⋅61021101161.

It is a cyclic number.

It is not a de Polignac number, because 223202240221 - 2⁵ = 223202240189 is a prime.

It is a super-3 number, since 3×223202240221³ (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 = 223202240192 and 223202240201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223202240201) 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, 4852222591 + ... + 4852222636.

It is an arithmetic number, because the mean of its divisors is an integer number (58226671368).

Almost surely, 2^223202240221 is an apocalyptic number.

It is an amenable number.

223202240221 is a deficient number, since it is larger than the sum of its proper divisors (9704445251).

223202240221 is an equidigital number, since it uses as much as digits as its factorization.

223202240221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9704445250.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 223202240221 its reverse (122042202322), we get a palindrome (345244442543).

The spelling of 223202240221 in words is "two hundred twenty-three billion, two hundred two million, two hundred forty thousand, two hundred twenty-one".