21022001000210 has 48 divisors (see below), whose sum is σ = 45938735596224. Its totient is φ = 6783570064128.

The previous prime is 21022001000197. The next prime is 21022001000239. The reversal of 21022001000210 is 1200010022012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21022001000191 and 21022001000200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 519554684 + ... + 519595143.

It is an arithmetic number, because the mean of its divisors is an integer number (957056991588).

Almost surely, 2^{21022001000210} is an apocalyptic number.

21022001000210 is an abundant number, since it is smaller than the sum of its proper divisors (24916734596014).

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

21022001000210 is a wasteful number, since it uses less digits than its factorization.

21022001000210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039149875 (or 1039149858 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 21022001000210 its reverse (1200010022012), we get a palindrome (22222011022222).

The spelling of 21022001000210 in words is "twenty-one trillion, twenty-two billion, one million, two hundred ten", and thus it is an aban number.