11522422236 has 96 divisors (see below), whose sum is σ = 29242259200. Its totient is φ = 3510190080.

The previous prime is 11522422213. The next prime is 11522422243. The reversal of 11522422236 is 63222422511.

It is a congruent number.

It is an unprimeable number.

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, 14983260 + ... + 14984028.

Almost surely, 2^11522422236 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 11522422236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14621129600).

11522422236 is an abundant number, since it is smaller than the sum of its proper divisors (17719836964).

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

11522422236 is a wasteful number, since it uses less digits than its factorization.

11522422236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619 (or 1617 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

Adding to 11522422236 its reverse (63222422511), we get a palindrome (74744844747).

The spelling of 11522422236 in words is "eleven billion, five hundred twenty-two million, four hundred twenty-two thousand, two hundred thirty-six".