124240221340 has 48 divisors (see below), whose sum is σ = 272348756064. Its totient is φ = 47560262400.

The previous prime is 124240221311. The next prime is 124240221349. The reversal of 124240221340 is 43122042421.

124240221340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×124240221340² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124240221349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1331026 + ... + 1421305.

It is an arithmetic number, because the mean of its divisors is an integer number (5673932418).

Almost surely, 2^124240221340 is an apocalyptic number.

124240221340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124240221340 is an abundant number, since it is smaller than the sum of its proper divisors (148108534724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124240221340 is a wasteful number, since it uses less digits than its factorization.

124240221340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752438 (or 2752436 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 124240221340 its reverse (43122042421), we get a palindrome (167362263761).

The spelling of 124240221340 in words is "one hundred twenty-four billion, two hundred forty million, two hundred twenty-one thousand, three hundred forty".