221111103113 has 16 divisors (see below), whose sum is σ = 231412755600. Its totient is φ = 210990151680.

The previous prime is 221111103107. The next prime is 221111103181. The reversal of 221111103113 is 311301111122.

It can be written as a sum of positive squares in 8 ways, for example, as 5841086329 + 215270016784 = 76427^2 + 463972^2 .

It is a cyclic number.

It is not a de Polignac number, because 221111103113 - 2⁸ = 221111102857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221111103091 and 221111103100.

It is not an unprimeable number, because it can be changed into a prime (221111103613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5899553 + ... + 5936913.

It is an arithmetic number, because the mean of its divisors is an integer number (14463297225).

Almost surely, 2^221111103113 is an apocalyptic number.

It is an amenable number.

221111103113 is a deficient number, since it is larger than the sum of its proper divisors (10301652487).

221111103113 is a wasteful number, since it uses less digits than its factorization.

221111103113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39772.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 221111103113 its reverse (311301111122), we get a palindrome (532412214235).

The spelling of 221111103113 in words is "two hundred twenty-one billion, one hundred eleven million, one hundred three thousand, one hundred thirteen".