11220055122 has 64 divisors (see below), whose sum is σ = 23538917376. Its totient is φ = 3561252480.

The previous prime is 11220055117. The next prime is 11220055129. The reversal of 11220055122 is 22155002211.

It is not an unprimeable number, because it can be changed into a prime (11220055129) 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, 3120958 + ... + 3124550.

It is an arithmetic number, because the mean of its divisors is an integer number (367795584).

Almost surely, 2^11220055122 is an apocalyptic number.

11220055122 is an abundant number, since it is smaller than the sum of its proper divisors (12318862254).

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

11220055122 is a wasteful number, since it uses less digits than its factorization.

11220055122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3895.

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 11220055122 its reverse (22155002211), we get a palindrome (33375057333).

The spelling of 11220055122 in words is "eleven billion, two hundred twenty million, fifty-five thousand, one hundred twenty-two".