124045501252221 has 24 divisors (see below), whose sum is σ = 182218359323520. Its totient is φ = 81293291654400.

The previous prime is 124045501252207. The next prime is 124045501252241. The reversal of 124045501252221 is 122252105540421.

It is a happy number.

124045501252221 is a `hidden beast` number, since 1 + 2 + 40 + 4 + 550 + 1 + 25 + 22 + 21 = 666.

It is not a de Polignac number, because 124045501252221 - 2⁶ = 124045501252157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124045501252241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18096781 + ... + 23991341.

It is an arithmetic number, because the mean of its divisors is an integer number (7592431638480).

Almost surely, 2^{124045501252221} is an apocalyptic number.

It is an amenable number.

124045501252221 is a deficient number, since it is larger than the sum of its proper divisors (58172858071299).

124045501252221 is a wasteful number, since it uses less digits than its factorization.

124045501252221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5934257 (or 5934254 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

Adding to 124045501252221 its reverse (122252105540421), we get a palindrome (246297606792642).

The spelling of 124045501252221 in words is "one hundred twenty-four trillion, forty-five billion, five hundred one million, two hundred fifty-two thousand, two hundred twenty-one".