11223232225 has 48 divisors (see below), whose sum is σ = 14611564800. Its totient is φ = 8544430080.

The previous prime is 11223232213. The next prime is 11223232231. The reversal of 11223232225 is 52223232211.

It is a de Polignac number, because none of the positive numbers 2^k-11223232225 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 11223232225.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6723691 + ... + 6725359.

It is an arithmetic number, because the mean of its divisors is an integer number (304407600).

Almost surely, 2^11223232225 is an apocalyptic number.

It is an amenable number.

11223232225 is a deficient number, since it is larger than the sum of its proper divisors (3388332575).

11223232225 is a wasteful number, since it uses less digits than its factorization.

11223232225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882 (or 1877 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

Adding to 11223232225 its reverse (52223232211), we get a palindrome (63446464436).

The spelling of 11223232225 in words is "eleven billion, two hundred twenty-three million, two hundred thirty-two thousand, two hundred twenty-five".