11111222212213 has 8 divisors (see below), whose sum is σ = 11305167003360. Its totient is φ = 10917464720880.

The previous prime is 11111222212151. The next prime is 11111222212219. The reversal of 11111222212213 is 31221222211111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11111222212213 - 2⁹ = 11111222211701 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 (11111222212219) 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 7 ways as a sum of consecutive naturals, for example, 46705270 + ... + 46942567.

It is an arithmetic number, because the mean of its divisors is an integer number (1413145875420).

Almost surely, 2^{11111222212213} is an apocalyptic number.

It is an amenable number.

11111222212213 is a deficient number, since it is larger than the sum of its proper divisors (193944791147).

11111222212213 is an equidigital number, since it uses as much as digits as its factorization.

11111222212213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93649907.

The product of its digits is 192, while the sum is 22.

Adding to 11111222212213 its reverse (31221222211111), we get a palindrome (42332444423324).

The spelling of 11111222212213 in words is "eleven trillion, one hundred eleven billion, two hundred twenty-two million, two hundred twelve thousand, two hundred thirteen".