1100221132013 has 4 divisors (see below), whose sum is σ = 1100446177020. Its totient is φ = 1099996087008.

The previous prime is 1100221131949. The next prime is 1100221132063. The reversal of 1100221132013 is 3102311220011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 608879014249 + 491342117764 = 780307^2 + 700958^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100221132013 - 2⁶ = 1100221131949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100221131982 and 1100221132000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100221132063) 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, 112515170 + ... + 112524947.

It is an arithmetic number, because the mean of its divisors is an integer number (275111544255).

Almost surely, 2^{1100221132013} is an apocalyptic number.

It is an amenable number.

1100221132013 is a deficient number, since it is larger than the sum of its proper divisors (225045007).

1100221132013 is an equidigital number, since it uses as much as digits as its factorization.

1100221132013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225045006.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1100221132013 its reverse (3102311220011), we get a palindrome (4202532352024).

The spelling of 1100221132013 in words is "one trillion, one hundred billion, two hundred twenty-one million, one hundred thirty-two thousand, thirteen".