124122404221420 has 48 divisors (see below), whose sum is σ = 285000873696000. Its totient is φ = 45032605513920.

The previous prime is 124122404221381. The next prime is 124122404221457. The reversal of 124122404221420 is 24122404221421.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642491970 + ... + 642685129.

It is an arithmetic number, because the mean of its divisors is an integer number (5937518202000).

Almost surely, 2^{124122404221420} is an apocalyptic number.

124122404221420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124122404221420 is an abundant number, since it is smaller than the sum of its proper divisors (160878469474580).

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

124122404221420 is a wasteful number, since it uses less digits than its factorization.

124122404221420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285177558 (or 1285177556 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 31.

Adding to 124122404221420 its reverse (24122404221421), we get a palindrome (148244808442841).

Subtracting from 124122404221420 its reverse (24122404221421), we obtain a palindrome (99999999999999).

The spelling of 124122404221420 in words is "one hundred twenty-four trillion, one hundred twenty-two billion, four hundred four million, two hundred twenty-one thousand, four hundred twenty".