10024120021 has 4 divisors (see below), whose sum is σ = 10024320672. Its totient is φ = 10023919372.

The previous prime is 10024119991. The next prime is 10024120027. The reversal of 10024120021 is 12002142001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10024120021 - 2¹⁹ = 10023595733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10024119983 and 10024120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10024120027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40560 + ... + 147286.

It is an arithmetic number, because the mean of its divisors is an integer number (2506080168).

Almost surely, 2^10024120021 is an apocalyptic number.

It is an amenable number.

10024120021 is a deficient number, since it is larger than the sum of its proper divisors (200651).

10024120021 is an equidigital number, since it uses as much as digits as its factorization.

10024120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200650.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10024120021 its reverse (12002142001), we get a palindrome (22026262022).

The spelling of 10024120021 in words is "ten billion, twenty-four million, one hundred twenty thousand, twenty-one".