1241255223999 has 24 divisors (see below), whose sum is σ = 2092653189120. Its totient is φ = 694197448848.

The previous prime is 1241255223973. The next prime is 1241255224031. The reversal of 1241255223999 is 9993225521421.

1241255223999 is a `hidden beast` number, since 1 + 2 + 4 + 1 + 25 + 522 + 3 + 9 + 99 = 666.

It is not a de Polignac number, because 1241255223999 - 2¹² = 1241255219903 is a prime.

It is a super-2 number, since 2×1241255223999² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241255023999) 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 23 ways as a sum of consecutive naturals, for example, 209597719 + ... + 209603640.

It is an arithmetic number, because the mean of its divisors is an integer number (87193882880).

Almost surely, 2^{1241255223999} is an apocalyptic number.

1241255223999 is a deficient number, since it is larger than the sum of its proper divisors (851397965121).

1241255223999 is a wasteful number, since it uses less digits than its factorization.

1241255223999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419201419 (or 419201416 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 54.

The spelling of 1241255223999 in words is "one trillion, two hundred forty-one billion, two hundred fifty-five million, two hundred twenty-three thousand, nine hundred ninety-nine".