11121120112213 has 4 divisors (see below), whose sum is σ = 11130970529740. Its totient is φ = 11111269694688.

The previous prime is 11121120112199. The next prime is 11121120112231. The reversal of 11121120112213 is 31221102112111.

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 1184490485649 + 9936629626564 = 1088343^2 + 3152242^2 .

It is a cyclic number.

It is not a de Polignac number, because 11121120112213 - 2⁴¹ = 8922096856661 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 (11121120112813) 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, 4925207070 + ... + 4925209327.

It is an arithmetic number, because the mean of its divisors is an integer number (2782742632435).

Almost surely, 2^{11121120112213} is an apocalyptic number.

It is an amenable number.

11121120112213 is a deficient number, since it is larger than the sum of its proper divisors (9850417527).

11121120112213 is an equidigital number, since it uses as much as digits as its factorization.

11121120112213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9850417526.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 11121120112213 its reverse (31221102112111), we get a palindrome (42342222224324).

The spelling of 11121120112213 in words is "eleven trillion, one hundred twenty-one billion, one hundred twenty million, one hundred twelve thousand, two hundred thirteen".