21011002002210 has 32 divisors (see below), whose sum is σ = 55010623424832. Its totient is φ = 5093576242880.

The previous prime is 21011002002161. The next prime is 21011002002239. The reversal of 21011002002210 is 1220020011012.

21011002002210 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31834851189 + ... + 31834851848.

It is an arithmetic number, because the mean of its divisors is an integer number (1719081982026).

Almost surely, 2^{21011002002210} is an apocalyptic number.

21011002002210 is an abundant number, since it is smaller than the sum of its proper divisors (33999621422622).

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

21011002002210 is a wasteful number, since it uses less digits than its factorization.

21011002002210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63669703058.

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

Adding to 21011002002210 its reverse (1220020011012), we get a palindrome (22231022013222).

The spelling of 21011002002210 in words is "twenty-one trillion, eleven billion, two million, two thousand, two hundred ten".