11111012221223 has 4 divisors (see below), whose sum is σ = 11163671047128. Its totient is φ = 11058353395320.

The previous prime is 11111012221207. The next prime is 11111012221241. The reversal of 11111012221223 is 32212221011111.

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

It is a cyclic number.

It is not a de Polignac number, because 11111012221223 - 2⁴ = 11111012221207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11111012221195 and 11111012221204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111012221273) 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, 26329412636 + ... + 26329413057.

It is an arithmetic number, because the mean of its divisors is an integer number (2790917761782).

Almost surely, 2^{11111012221223} is an apocalyptic number.

11111012221223 is a deficient number, since it is larger than the sum of its proper divisors (52658825905).

11111012221223 is an equidigital number, since it uses as much as digits as its factorization.

11111012221223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52658825904.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 11111012221223 its reverse (32212221011111), we get a palindrome (43323233232334).

The spelling of 11111012221223 in words is "eleven trillion, one hundred eleven billion, twelve million, two hundred twenty-one thousand, two hundred twenty-three".