1103111233221 has 32 divisors (see below), whose sum is σ = 1555326420480. Its totient is φ = 693510120000.

The previous prime is 1103111233163. The next prime is 1103111233283. The reversal of 1103111233221 is 1223321113011.

It is not a de Polignac number, because 1103111233221 - 2⁶ = 1103111233157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103111234221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24771786 + ... + 24816276.

It is an arithmetic number, because the mean of its divisors is an integer number (48603950640).

Almost surely, 2^{1103111233221} is an apocalyptic number.

It is an amenable number.

1103111233221 is a deficient number, since it is larger than the sum of its proper divisors (452215187259).

1103111233221 is a wasteful number, since it uses less digits than its factorization.

1103111233221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46497.

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

Adding to 1103111233221 its reverse (1223321113011), we get a palindrome (2326432346232).

The spelling of 1103111233221 in words is "one trillion, one hundred three billion, one hundred eleven million, two hundred thirty-three thousand, two hundred twenty-one".