124113435421221 has 6 divisors (see below), whose sum is σ = 179274962275110. Its totient is φ = 82742290280808.

The previous prime is 124113435421211. The next prime is 124113435421231. The reversal of 124113435421221 is 122124534311421.

124113435421221 is a `hidden beast` number, since 1 + 2 + 4 + 1 + 1 + 3 + 4 + 3 + 5 + 421 + 221 = 666.

It is an interprime number because it is at equal distance from previous prime (124113435421211) and next prime (124113435421231).

It can be written as a sum of positive squares in only one way, i.e., 113129580065121 + 10983855356100 = 10636239^2 + 3314190^2 .

It is not a de Polignac number, because 124113435421221 - 2⁵ = 124113435421189 is a prime.

It is a super-5 number, since 5×124113435421221⁵ (a number of 72 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124113435421201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6895190856726 + ... + 6895190856743.

It is an arithmetic number, because the mean of its divisors is an integer number (29879160379185).

Almost surely, 2^{124113435421221} is an apocalyptic number.

It is an amenable number.

124113435421221 is a deficient number, since it is larger than the sum of its proper divisors (55161526853889).

124113435421221 is a wasteful number, since it uses less digits than its factorization.

124113435421221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13790381713475 (or 13790381713472 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

Adding to 124113435421221 its reverse (122124534311421), we get a palindrome (246237969732642).

The spelling of 124113435421221 in words is "one hundred twenty-four trillion, one hundred thirteen billion, four hundred thirty-five million, four hundred twenty-one thousand, two hundred twenty-one".