111223012213 has 4 divisors (see below), whose sum is σ = 111234255628. Its totient is φ = 111211768800.

The previous prime is 111223012189. The next prime is 111223012217. The reversal of 111223012213 is 312210322111.

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 87771765169 + 23451247044 = 296263^2 + 153138^2 .

It is a cyclic number.

It is not a de Polignac number, because 111223012213 - 2²⁵ = 111189457781 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 (111223012217) 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, 5606856 + ... + 5626657.

It is an arithmetic number, because the mean of its divisors is an integer number (27808563907).

Almost surely, 2^111223012213 is an apocalyptic number.

It is an amenable number.

111223012213 is a deficient number, since it is larger than the sum of its proper divisors (11243415).

111223012213 is an equidigital number, since it uses as much as digits as its factorization.

111223012213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11243414.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111223012213 its reverse (312210322111), we get a palindrome (423433334324).

The spelling of 111223012213 in words is "one hundred eleven billion, two hundred twenty-three million, twelve thousand, two hundred thirteen".