1103323111221 has 8 divisors (see below), whose sum is σ = 1480839849664. Its totient is φ = 730677556800.

The previous prime is 1103323111217. The next prime is 1103323111223. The reversal of 1103323111221 is 1221113233011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1103323111221 - 2² = 1103323111217 is a prime.

It is a super-2 number, since 2×1103323111221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103323111223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1217795476 + ... + 1217796381.

It is an arithmetic number, because the mean of its divisors is an integer number (185104981208).

Almost surely, 2^{1103323111221} is an apocalyptic number.

It is an amenable number.

1103323111221 is a deficient number, since it is larger than the sum of its proper divisors (377516738443).

1103323111221 is a wasteful number, since it uses less digits than its factorization.

1103323111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435592011.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1103323111221 its reverse (1221113233011), we get a palindrome (2324436344232).

The spelling of 1103323111221 in words is "one trillion, one hundred three billion, three hundred twenty-three million, one hundred eleven thousand, two hundred twenty-one".