223121220041 has 4 divisors (see below), whose sum is σ = 230318678784. Its totient is φ = 215923761300.

The previous prime is 223121220001. The next prime is 223121220163. The reversal of 223121220041 is 140022121322.

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: 140022121322 = 2 ⋅70011060661.

It is a cyclic number.

It is not a de Polignac number, because 223121220041 - 2⁶ = 223121219977 is a prime.

It is a super-3 number, since 3×223121220041³ (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 = 223121219995 and 223121220022.

It is not an unprimeable number, because it can be changed into a prime (223121220001) 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, 3598729325 + ... + 3598729386.

It is an arithmetic number, because the mean of its divisors is an integer number (57579669696).

Almost surely, 2^223121220041 is an apocalyptic number.

It is an amenable number.

223121220041 is a deficient number, since it is larger than the sum of its proper divisors (7197458743).

223121220041 is an equidigital number, since it uses as much as digits as its factorization.

223121220041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7197458742.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 223121220041 its reverse (140022121322), we get a palindrome (363143341363).

The spelling of 223121220041 in words is "two hundred twenty-three billion, one hundred twenty-one million, two hundred twenty thousand, forty-one".