11221225152 has 28 divisors (see below), whose sum is σ = 29689492056. Its totient is φ = 3740408320.

The previous prime is 11221225151. The next prime is 11221225157. The reversal of 11221225152 is 25152212211.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (11221225151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29221749 + ... + 29222132.

It is an arithmetic number, because the mean of its divisors is an integer number (1060339002).

Almost surely, 2^11221225152 is an apocalyptic number.

11221225152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11221225152 is an abundant number, since it is smaller than the sum of its proper divisors (18468266904).

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

11221225152 is an equidigital number, since it uses as much as digits as its factorization.

11221225152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58443896 (or 58443886 counting only the distinct ones).

The product of its digits is 800, while the sum is 24.

Adding to 11221225152 its reverse (25152212211), we get a palindrome (36373437363).

The spelling of 11221225152 in words is "eleven billion, two hundred twenty-one million, two hundred twenty-five thousand, one hundred fifty-two".