221103223313 has 4 divisors (see below), whose sum is σ = 252689398080. Its totient is φ = 189517048548.

The previous prime is 221103223261. The next prime is 221103223321. The reversal of 221103223313 is 313322301122.

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 a cyclic number.

It is not a de Polignac number, because 221103223313 - 2⁶ = 221103223249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221103220313) 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, 15793087373 + ... + 15793087386.

It is an arithmetic number, because the mean of its divisors is an integer number (63172349520).

Almost surely, 2^221103223313 is an apocalyptic number.

It is an amenable number.

221103223313 is a deficient number, since it is larger than the sum of its proper divisors (31586174767).

221103223313 is an equidigital number, since it uses as much as digits as its factorization.

221103223313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31586174766.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 221103223313 its reverse (313322301122), we get a palindrome (534425524435).

It can be divided in two parts, 22110 and 3223313, that added together give a palindrome (3245423).

The spelling of 221103223313 in words is "two hundred twenty-one billion, one hundred three million, two hundred twenty-three thousand, three hundred thirteen".