10020002021 has 8 divisors (see below), whose sum is σ = 10065380160. Its totient is φ = 9974679552.

The previous prime is 10020002017. The next prime is 10020002059. The reversal of 10020002021 is 12020002001.

10020002021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10020002021 - 2² = 10020002017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020002221) 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, 370661 + ... + 396773.

It is an arithmetic number, because the mean of its divisors is an integer number (1258172520).

Almost surely, 2^10020002021 is an apocalyptic number.

It is an amenable number.

10020002021 is a deficient number, since it is larger than the sum of its proper divisors (45378139).

10020002021 is a wasteful number, since it uses less digits than its factorization.

10020002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27835.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 10020002021 its reverse (12020002001), we get a palindrome (22040004022).

The spelling of 10020002021 in words is "ten billion, twenty million, two thousand, twenty-one".