10200021011 has 4 divisors (see below), whose sum is σ = 10200415512. Its totient is φ = 10199626512.

The previous prime is 10200021001. The next prime is 10200021017. The reversal of 10200021011 is 11012000201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10200021011 - 2¹⁰ = 10200019987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10200021011.

It is not an unprimeable number, because it can be changed into a prime (10200021017) 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, 155525 + ... + 211158.

It is an arithmetic number, because the mean of its divisors is an integer number (2550103878).

Almost surely, 2^10200021011 is an apocalyptic number.

10200021011 is a deficient number, since it is larger than the sum of its proper divisors (394501).

10200021011 is an equidigital number, since it uses as much as digits as its factorization.

10200021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394500.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10200021011 its reverse (11012000201), we get a palindrome (21212021212).

The spelling of 10200021011 in words is "ten billion, two hundred million, twenty-one thousand, eleven".