11162222500 has 120 divisors (see below), whose sum is σ = 28677870144. Its totient is φ = 3746640000.

The previous prime is 11162222497. The next prime is 11162222509. The reversal of 11162222500 is 522226111.

It is a super-2 number, since 2×11162222500² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (11162222509) 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 39 ways as a sum of consecutive naturals, for example, 341889 + ... + 373111.

Almost surely, 2^11162222500 is an apocalyptic number.

11162222500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11162222500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14338935072).

11162222500 is an abundant number, since it is smaller than the sum of its proper divisors (17515647644).

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

11162222500 is a wasteful number, since it uses less digits than its factorization.

11162222500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31271 (or 31254 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 11162222500 its reverse (522226111), we get a palindrome (11684448611).

The spelling of 11162222500 in words is "eleven billion, one hundred sixty-two million, two hundred twenty-two thousand, five hundred".