11223220302 has 64 divisors (see below), whose sum is σ = 28661068800. Its totient is φ = 3188898720.

The previous prime is 11223220271. The next prime is 11223220303. The reversal of 11223220302 is 20302232211.

11223220302 is a `hidden beast` number, since 112 + 232 + 20 + 302 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223220303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13602 + ... + 150437.

It is an arithmetic number, because the mean of its divisors is an integer number (447829200).

Almost surely, 2^11223220302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11223220302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14330534400).

11223220302 is an abundant number, since it is smaller than the sum of its proper divisors (17437848498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11223220302 is a wasteful number, since it uses less digits than its factorization.

11223220302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164238 (or 164232 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 11223220302 its reverse (20302232211), we get a palindrome (31525452513).

The spelling of 11223220302 in words is "eleven billion, two hundred twenty-three million, two hundred twenty thousand, three hundred two".