1200012256 has 12 divisors (see below), whose sum is σ = 2362524192. Its totient is φ = 600006112.

The previous prime is 1200012239. The next prime is 1200012259. The reversal of 1200012256 is 6522100021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200012259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18750160 + ... + 18750223.

It is an arithmetic number, because the mean of its divisors is an integer number (196877016).

Almost surely, 2^1200012256 is an apocalyptic number.

1200012256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1200012256 is a deficient number, since it is larger than the sum of its proper divisors (1162511936).

1200012256 is an equidigital number, since it uses as much as digits as its factorization.

1200012256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37500393 (or 37500385 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1200012256 is about 34641.1930510483. The cubic root of 1200012256 is about 1062.6621869324.

Adding to 1200012256 its reverse (6522100021), we get a palindrome (7722112277).

The spelling of 1200012256 in words is "one billion, two hundred million, twelve thousand, two hundred fifty-six".