210021221000122 has 16 divisors (see below), whose sum is σ = 360041188383360. Its totient is φ = 90007892332848.

The previous prime is 210021221000093. The next prime is 210021221000161. The reversal of 210021221000122 is 221000122120012.

It is a happy number.

210021221000122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 210021221000096 and 210021221000105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99112597 + ... + 101209432.

It is an arithmetic number, because the mean of its divisors is an integer number (22502574273960).

Almost surely, 2^{210021221000122} is an apocalyptic number.

210021221000122 is a deficient number, since it is larger than the sum of its proper divisors (150019967383238).

210021221000122 is a wasteful number, since it uses less digits than its factorization.

210021221000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200396925.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210021221000122 its reverse (221000122120012), we get a palindrome (431021343120134).

The spelling of 210021221000122 in words is "two hundred ten trillion, twenty-one billion, two hundred twenty-one million, one hundred twenty-two", and thus it is an aban number.