2124342621 has 12 divisors (see below), whose sum is σ = 3070035072. Its totient is φ = 1415517576.

The previous prime is 2124342607. The next prime is 2124342637. The reversal of 2124342621 is 1262434212.

2124342621 is a `hidden beast` number, since 2 + 1 + 2 + 4 + 34 + 2 + 621 = 666.

It is not a de Polignac number, because 2124342621 - 2⁹ = 2124342109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124342641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39981 + ... + 76466.

It is an arithmetic number, because the mean of its divisors is an integer number (255836256).

Almost surely, 2^2124342621 is an apocalyptic number.

It is an amenable number.

2124342621 is a deficient number, since it is larger than the sum of its proper divisors (945692451).

2124342621 is a wasteful number, since it uses less digits than its factorization.

2124342621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118480 (or 118477 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 2124342621 is about 46090.5914585613. The cubic root of 2124342621 is about 1285.5082085956.

Adding to 2124342621 its reverse (1262434212), we get a palindrome (3386776833).

The spelling of 2124342621 in words is "two billion, one hundred twenty-four million, three hundred forty-two thousand, six hundred twenty-one".