124240220443211 has 4 divisors (see below), whose sum is σ = 124240271136000. Its totient is φ = 124240169750424.

The previous prime is 124240220443189. The next prime is 124240220443249. The reversal of 124240220443211 is 112344022042421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124240220443211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124240220442211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21472796 + ... + 26637593.

It is an arithmetic number, because the mean of its divisors is an integer number (31060067784000).

Almost surely, 2^{124240220443211} is an apocalyptic number.

124240220443211 is a deficient number, since it is larger than the sum of its proper divisors (50692789).

124240220443211 is an equidigital number, since it uses as much as digits as its factorization.

124240220443211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50692788.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 124240220443211 its reverse (112344022042421), we get a palindrome (236584242485632).

The spelling of 124240220443211 in words is "one hundred twenty-four trillion, two hundred forty billion, two hundred twenty million, four hundred forty-three thousand, two hundred eleven".