124121242121421 has 24 divisors (see below), whose sum is σ = 176393030565024. Its totient is φ = 77616201362400.

The previous prime is 124121242121347. The next prime is 124121242121431.

124121242121421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 124121242121421 - 2⁴⁶ = 53752497943757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124121242121431) 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, 567260511 + ... + 567479276.

It is an arithmetic number, because the mean of its divisors is an integer number (7349709606876).

Almost surely, 2^{124121242121421} is an apocalyptic number.

It is an amenable number.

124121242121421 is a deficient number, since it is larger than the sum of its proper divisors (52271788443603).

124121242121421 is a wasteful number, since it uses less digits than its factorization.

124121242121421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134739929 (or 1134739910 counting only the distinct ones).

The product of its digits is 4096, while the sum is 30.

The spelling of 124121242121421 in words is "one hundred twenty-four trillion, one hundred twenty-one billion, two hundred forty-two million, one hundred twenty-one thousand, four hundred twenty-one".