1123304220225 has 36 divisors (see below), whose sum is σ = 2194868372112. Its totient is φ = 544632348000.

The previous prime is 1123304220223. The next prime is 1123304220253. The reversal of 1123304220225 is 5220224033211.

1123304220225 is a `hidden beast` number, since 1 + 1 + 233 + 0 + 422 + 0 + 2 + 2 + 5 = 666.

It is not a de Polignac number, because 1123304220225 - 2¹ = 1123304220223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1123304220223) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 226927671 + ... + 226932620.

It is an arithmetic number, because the mean of its divisors is an integer number (60968565892).

Almost surely, 2^{1123304220225} is an apocalyptic number.

1123304220225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1123304220225 is a deficient number, since it is larger than the sum of its proper divisors (1071564151887).

1123304220225 is a wasteful number, since it uses less digits than its factorization.

1123304220225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453860318 (or 453860310 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 1123304220225 its reverse (5220224033211), we get a palindrome (6343528253436).

The spelling of 1123304220225 in words is "one trillion, one hundred twenty-three billion, three hundred four million, two hundred twenty thousand, two hundred twenty-five".