1223232255 has 144 divisors (see below), whose sum is σ = 2647517184. Its totient is φ = 511194240.

The previous prime is 1223232251. The next prime is 1223232271. The reversal of 1223232255 is 5522323221.

It is not a de Polignac number, because 1223232255 - 2² = 1223232251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223232251) 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 143 ways as a sum of consecutive naturals, for example, 3524992 + ... + 3525338.

It is an arithmetic number, because the mean of its divisors is an integer number (18385536).

Almost surely, 2^1223232255 is an apocalyptic number.

1223232255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1223232255 is an abundant number, since it is smaller than the sum of its proper divisors (1424284929).

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

1223232255 is a wasteful number, since it uses less digits than its factorization.

1223232255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 412 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 1223232255 is about 34974.7373828596. The cubic root of 1223232255 is about 1069.4725484346.

Adding to 1223232255 its reverse (5522323221), we get a palindrome (6745555476).

The spelling of 1223232255 in words is "one billion, two hundred twenty-three million, two hundred thirty-two thousand, two hundred fifty-five".