11222111304 has 96 divisors (see below), whose sum is σ = 31679968320. Its totient is φ = 3721588416.

The previous prime is 11222111291. The next prime is 11222111323. The reversal of 11222111304 is 40311122211.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 368317 + ... + 397619.

It is an arithmetic number, because the mean of its divisors is an integer number (329999670).

Almost surely, 2^11222111304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11222111304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15839984160).

11222111304 is an abundant number, since it is smaller than the sum of its proper divisors (20457857016).

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

11222111304 is a wasteful number, since it uses less digits than its factorization.

11222111304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29521 (or 29505 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11222111304 its reverse (40311122211), we get a palindrome (51533233515).

The spelling of 11222111304 in words is "eleven billion, two hundred twenty-two million, one hundred eleven thousand, three hundred four".