11212002223 has 4 divisors (see below), whose sum is σ = 11323012248. Its totient is φ = 11100992200.

The previous prime is 11212002203. The next prime is 11212002247. The reversal of 11212002223 is 32220021211.

It is a happy number.

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 11212002223 - 2⁹ = 11212001711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11212002197 and 11212002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212002203) 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, 55504861 + ... + 55505062.

It is an arithmetic number, because the mean of its divisors is an integer number (2830753062).

Almost surely, 2^11212002223 is an apocalyptic number.

11212002223 is a deficient number, since it is larger than the sum of its proper divisors (111010025).

11212002223 is a wasteful number, since it uses less digits than its factorization.

11212002223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111010024.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 11212002223 its reverse (32220021211), we get a palindrome (43432023434).

The spelling of 11212002223 in words is "eleven billion, two hundred twelve million, two thousand, two hundred twenty-three".