11112121202223 has 8 divisors (see below), whose sum is σ = 14982635329200. Its totient is φ = 7324843938368.

The previous prime is 11112121202159. The next prime is 11112121202233. The reversal of 11112121202223 is 32220212121111.

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 11112121202223 - 2⁶ = 11112121202159 is a prime.

It is a super-2 number, since 2×11112121202223² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11112121202223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112121202233) 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, 20809215468 + ... + 20809216001.

It is an arithmetic number, because the mean of its divisors is an integer number (1872829416150).

Almost surely, 2^{11112121202223} is an apocalyptic number.

11112121202223 is a deficient number, since it is larger than the sum of its proper divisors (3870514126977).

11112121202223 is an equidigital number, since it uses as much as digits as its factorization.

11112121202223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41618431561.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 11112121202223 its reverse (32220212121111), we get a palindrome (43332333323334).

The spelling of 11112121202223 in words is "eleven trillion, one hundred twelve billion, one hundred twenty-one million, two hundred two thousand, two hundred twenty-three".