2124421121 has 8 divisors (see below), whose sum is σ = 2146815360. Its totient is φ = 2102074128.

The previous prime is 2124421111. The next prime is 2124421147. The reversal of 2124421121 is 1211244212.

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 2124421121 - 2³⁰ = 1050679297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2124421093 and 2124421102.

It is not an unprimeable number, because it can be changed into a prime (2124421111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82520 + ... + 105158.

It is an arithmetic number, because the mean of its divisors is an integer number (268351920).

Almost surely, 2^2124421121 is an apocalyptic number.

It is an amenable number.

2124421121 is a deficient number, since it is larger than the sum of its proper divisors (22394239).

2124421121 is a wasteful number, since it uses less digits than its factorization.

2124421121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23623.

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

The square root of 2124421121 is about 46091.4430344722. The cubic root of 2124421121 is about 1285.5240426942.

Adding to 2124421121 its reverse (1211244212), we get a palindrome (3335665333).

The spelling of 2124421121 in words is "two billion, one hundred twenty-four million, four hundred twenty-one thousand, one hundred twenty-one".