10000200021 has 16 divisors (see below), whose sum is σ = 15239875200. Its totient is φ = 5713846848.

The previous prime is 10000200017. The next prime is 10000200031. The reversal of 10000200021 is 12000200001.

It is a happy number.

It is not a de Polignac number, because 10000200021 - 2² = 10000200017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10000199982 and 10000200009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000200031) 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, 312975 + ... + 343443.

It is an arithmetic number, because the mean of its divisors is an integer number (952492200).

Almost surely, 2^10000200021 is an apocalyptic number.

It is an amenable number.

10000200021 is a deficient number, since it is larger than the sum of its proper divisors (5239675179).

10000200021 is a wasteful number, since it uses less digits than its factorization.

10000200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46108.

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 10000200021 its reverse (12000200001), we get a palindrome (22000400022).

The spelling of 10000200021 in words is "ten billion, two hundred thousand, twenty-one".