2124004012121 has 8 divisors (see below), whose sum is σ = 2217131663040. Its totient is φ = 2030941332112.

The previous prime is 2124004012079. The next prime is 2124004012139. The reversal of 2124004012121 is 1212104004212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2124004012121 - 2⁶ = 2124004012057 is a prime.

It is a super-2 number, since 2×2124004012121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2124004012093 and 2124004012102.

It is not an unprimeable number, because it can be changed into a prime (2124004012171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16175906 + ... + 16306683.

It is an arithmetic number, because the mean of its divisors is an integer number (277141457880).

Almost surely, 2^{2124004012121} is an apocalyptic number.

It is an amenable number.

2124004012121 is a deficient number, since it is larger than the sum of its proper divisors (93127650919).

2124004012121 is a wasteful number, since it uses less digits than its factorization.

2124004012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32485455.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2124004012121 its reverse (1212104004212), we get a palindrome (3336108016333).

The spelling of 2124004012121 in words is "two trillion, one hundred twenty-four billion, four million, twelve thousand, one hundred twenty-one".