10000102021 has 16 divisors (see below), whose sum is σ = 12955600000. Its totient is φ = 7495737408.

The previous prime is 10000102019. The next prime is 10000102037. The reversal of 10000102021 is 12020100001.

It is a cyclic number.

It is not a de Polignac number, because 10000102021 - 2¹ = 10000102019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a junction number, because it is equal to n+sod(n) for n = 10000101995 and 10000102013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000102001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2890146 + ... + 2893603.

It is an arithmetic number, because the mean of its divisors is an integer number (809725000).

Almost surely, 2^10000102021 is an apocalyptic number.

It is an amenable number.

10000102021 is a deficient number, since it is larger than the sum of its proper divisors (2955497979).

10000102021 is a wasteful number, since it uses less digits than its factorization.

10000102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5783788.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 10000102021 its reverse (12020100001), we get a palindrome (22020202022).

The spelling of 10000102021 in words is "ten billion, one hundred two thousand, twenty-one".