124221122421 has 16 divisors (see below), whose sum is σ = 185568656448. Its totient is φ = 73250784000.

The previous prime is 124221122359. The next prime is 124221122437.

124221122421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 124221122421 - 2¹⁰ = 124221121397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124221122391 and 124221122400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124221122821) 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 15 ways as a sum of consecutive naturals, for example, 50867380 + ... + 50869821.

It is an arithmetic number, because the mean of its divisors is an integer number (11598041028).

Almost surely, 2^124221122421 is an apocalyptic number.

124221122421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124221122421 is a deficient number, since it is larger than the sum of its proper divisors (61347534027).

124221122421 is a wasteful number, since it uses less digits than its factorization.

124221122421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101737252.

The product of its digits is 1024, while the sum is 24.

It can be divided in two parts, 124221 and 122421, that added together give a palindrome (246642).

The spelling of 124221122421 in words is "one hundred twenty-four billion, two hundred twenty-one million, one hundred twenty-two thousand, four hundred twenty-one".