210021122220222 has 32 divisors (see below), whose sum is σ = 420256787363712. Its totient is φ = 69971284797344.

The previous prime is 210021122220157. The next prime is 210021122220227. The reversal of 210021122220222 is 222022221120012.

210021122220222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210021122220227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939609508 + ... + 939833000.

It is an arithmetic number, because the mean of its divisors is an integer number (13133024605116).

Almost surely, 2^{210021122220222} is an apocalyptic number.

210021122220222 is an abundant number, since it is smaller than the sum of its proper divisors (210235665143490).

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

210021122220222 is a wasteful number, since it uses less digits than its factorization.

210021122220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302792.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 210021122220222 its reverse (222022221120012), we get a palindrome (432043343340234).

The spelling of 210021122220222 in words is "two hundred ten trillion, twenty-one billion, one hundred twenty-two million, two hundred twenty thousand, two hundred twenty-two".