1223040225 has 48 divisors (see below), whose sum is σ = 2230839360. Its totient is φ = 586291200.

The previous prime is 1223040211. The next prime is 1223040239. The reversal of 1223040225 is 5220403221.

It is an interprime number because it is at equal distance from previous prime (1223040211) and next prime (1223040239).

It is not a de Polignac number, because 1223040225 - 2⁵ = 1223040193 is a prime.

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, 65097 + ... + 81753.

It is an arithmetic number, because the mean of its divisors is an integer number (46475820).

Almost surely, 2^1223040225 is an apocalyptic number.

1223040225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1223040225 is a deficient number, since it is larger than the sum of its proper divisors (1007799135).

1223040225 is a wasteful number, since it uses less digits than its factorization.

1223040225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16770 (or 16765 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1223040225 is about 34971.9920078911. The cubic root of 1223040225 is about 1069.4165815320.

Adding to 1223040225 its reverse (5220403221), we get a palindrome (6443443446).

The spelling of 1223040225 in words is "one billion, two hundred twenty-three million, forty thousand, two hundred twenty-five".