2124013310021 has 8 divisors (see below), whose sum is σ = 2248980678360. Its totient is φ = 1999048764928.

The previous prime is 2124013310011. The next prime is 2124013310063. The reversal of 2124013310021 is 1200133104212.

It can be written as a sum of positive squares in 4 ways, for example, as 1713779464996 + 410233845025 = 1309114^2 + 640495^2 .

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 2124013310021 - 2³⁴ = 2106833440837 is a prime.

It is a super-2 number, since 2×2124013310021² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2124013309975 and 2124013310002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124013310011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 954755 + ... + 2271471.

It is an arithmetic number, because the mean of its divisors is an integer number (281122584795).

Almost surely, 2^{2124013310021} is an apocalyptic number.

It is an amenable number.

2124013310021 is a deficient number, since it is larger than the sum of its proper divisors (124967368339).

2124013310021 is a wasteful number, since it uses less digits than its factorization.

2124013310021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411623.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2124013310021 its reverse (1200133104212), we get a palindrome (3324146414233).

The spelling of 2124013310021 in words is "two trillion, one hundred twenty-four billion, thirteen million, three hundred ten thousand, twenty-one".