11220012304 has 40 divisors (see below), whose sum is σ = 22639455000. Its totient is φ = 5380171776.

The previous prime is 11220012277. The next prime is 11220012343. The reversal of 11220012304 is 40321002211.

It can be written as a sum of positive squares in 4 ways, for example, as 15366400 + 11204645904 = 3920^2 + 105852^2 .

It is a super-2 number, since 2×11220012304² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12009 + ... + 150280.

It is an arithmetic number, because the mean of its divisors is an integer number (565986375).

Almost surely, 2^11220012304 is an apocalyptic number.

It is an amenable number.

11220012304 is an abundant number, since it is smaller than the sum of its proper divisors (11419442696).

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

11220012304 is a wasteful number, since it uses less digits than its factorization.

11220012304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162475 (or 162469 counting only the distinct ones).

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

Adding to 11220012304 its reverse (40321002211), we get a palindrome (51541014515).

The spelling of 11220012304 in words is "eleven billion, two hundred twenty million, twelve thousand, three hundred four".