11155132225 has 12 divisors (see below), whose sum is σ = 14278570240. Its totient is φ = 8636230800.

The previous prime is 11155132223. The next prime is 11155132253. The reversal of 11155132225 is 52223155111.

It is a happy number.

11155132225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11155132225 - 2¹ = 11155132223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11155132193 and 11155132202.

It is not an unprimeable number, because it can be changed into a prime (11155132223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7196085 + ... + 7197634.

Almost surely, 2^11155132225 is an apocalyptic number.

It is an amenable number.

11155132225 is a deficient number, since it is larger than the sum of its proper divisors (3123438015).

11155132225 is a wasteful number, since it uses less digits than its factorization.

11155132225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14393760 (or 14393755 counting only the distinct ones).

The product of its digits is 3000, while the sum is 28.

Adding to 11155132225 its reverse (52223155111), we get a palindrome (63378287336).

It can be divided in two parts, 11155 and 132225, that added together give a triangular number (143380 = T₅₃₅).

The spelling of 11155132225 in words is "eleven billion, one hundred fifty-five million, one hundred thirty-two thousand, two hundred twenty-five".