11202021223 has 32 divisors (see below), whose sum is σ = 12205209600. Its totient is φ = 10255255296.

The previous prime is 11202021211. The next prime is 11202021227. The reversal of 11202021223 is 32212020211.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11202021223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11202021197 and 11202021206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202021227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8570136 + ... + 8571442.

It is an arithmetic number, because the mean of its divisors is an integer number (381412800).

Almost surely, 2^11202021223 is an apocalyptic number.

11202021223 is a deficient number, since it is larger than the sum of its proper divisors (1003188377).

11202021223 is a wasteful number, since it uses less digits than its factorization.

11202021223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551.

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

Adding to 11202021223 its reverse (32212020211), we get a palindrome (43414041434).

The spelling of 11202021223 in words is "eleven billion, two hundred two million, twenty-one thousand, two hundred twenty-three".