10002021015 has 16 divisors (see below), whose sum is σ = 18289410048. Its totient is φ = 4572352416.

The previous prime is 10002021013. The next prime is 10002021037. The reversal of 10002021015 is 51012020001.

10002021015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10002021015 - 2¹ = 10002021013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002021013) 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 15 ways as a sum of consecutive naturals, for example, 47628567 + ... + 47628776.

It is an arithmetic number, because the mean of its divisors is an integer number (1143088128).

Almost surely, 2^10002021015 is an apocalyptic number.

10002021015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10002021015 is a deficient number, since it is larger than the sum of its proper divisors (8287389033).

10002021015 is an equidigital number, since it uses as much as digits as its factorization.

10002021015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95257358.

The product of its (nonzero) digits is 20, while the sum is 12.

Adding to 10002021015 its reverse (51012020001), we get a palindrome (61014041016).

The spelling of 10002021015 in words is "ten billion, two million, twenty-one thousand, fifteen".