21000011000210 has 32 divisors (see below), whose sum is σ = 41354541144000. Its totient is φ = 7614486912960.

The previous prime is 21000011000203. The next prime is 21000011000219. The reversal of 21000011000210 is 1200011000012.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21000011000219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273470480 + ... + 273547259.

It is an arithmetic number, because the mean of its divisors is an integer number (1292329410750).

Almost surely, 2^{21000011000210} is an apocalyptic number.

21000011000210 is a deficient number, since it is larger than the sum of its proper divisors (20354530143790).

21000011000210 is a wasteful number, since it uses less digits than its factorization.

21000011000210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547018106.

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

Adding to 21000011000210 its reverse (1200011000012), we get a palindrome (22200022000222).

The spelling of 21000011000210 in words is "twenty-one trillion, eleven million, two hundred ten", and thus it is an aban number.