21210200011002 has 64 divisors (see below), whose sum is σ = 45587746805760. Its totient is φ = 6561568563264.

The previous prime is 21210200010971. The next prime is 21210200011051. The reversal of 21210200011002 is 20011000201212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3952428 + ... + 7618535.

It is an arithmetic number, because the mean of its divisors is an integer number (712308543840).

Almost surely, 2^{21210200011002} is an apocalyptic number.

21210200011002 is an abundant number, since it is smaller than the sum of its proper divisors (24377546794758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21210200011002 is a wasteful number, since it uses less digits than its factorization.

21210200011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11571387.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21210200011002 its reverse (20011000201212), we get a palindrome (41221200212214).

The spelling of 21210200011002 in words is "twenty-one trillion, two hundred ten billion, two hundred million, eleven thousand, two".