1111320221101 has 4 divisors (see below), whose sum is σ = 1111327306432. Its totient is φ = 1111313135772.

The previous prime is 1111320221071. The next prime is 1111320221113. The reversal of 1111320221101 is 1011220231111.

It is a happy number.

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 1111320221101 - 2⁹ = 1111320220589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111320221171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3301941 + ... + 3622906.

It is an arithmetic number, because the mean of its divisors is an integer number (277831826608).

Almost surely, 2^{1111320221101} is an apocalyptic number.

It is an amenable number.

1111320221101 is a deficient number, since it is larger than the sum of its proper divisors (7085331).

1111320221101 is an equidigital number, since it uses as much as digits as its factorization.

1111320221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7085330.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1111320221101 its reverse (1011220231111), we get a palindrome (2122540452212).

The spelling of 1111320221101 in words is "one trillion, one hundred eleven billion, three hundred twenty million, two hundred twenty-one thousand, one hundred one".