124221305553 has 16 divisors (see below), whose sum is σ = 169555389696. Its totient is φ = 80852420880.

The previous prime is 124221305539. The next prime is 124221305587. The reversal of 124221305553 is 355503122421.

It is not a de Polignac number, because 124221305553 - 2⁸ = 124221305297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124221304553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80058 + ... + 504828.

It is an arithmetic number, because the mean of its divisors is an integer number (10597211856).

Almost surely, 2^124221305553 is an apocalyptic number.

It is an amenable number.

124221305553 is a deficient number, since it is larger than the sum of its proper divisors (45334084143).

124221305553 is a wasteful number, since it uses less digits than its factorization.

124221305553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427084.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 124221305553 its reverse (355503122421), we get a palindrome (479724427974).

The spelling of 124221305553 in words is "one hundred twenty-four billion, two hundred twenty-one million, three hundred five thousand, five hundred fifty-three".