210021200022122 has 8 divisors (see below), whose sum is σ = 315064992749472. Its totient is φ = 104999535772300.

The previous prime is 210021200022103. The next prime is 210021200022209. The reversal of 210021200022122 is 221220002120012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 210021200022122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5532095654 + ... + 5532133617.

It is an arithmetic number, because the mean of its divisors is an integer number (39383124093684).

Almost surely, 2^{210021200022122} is an apocalyptic number.

210021200022122 is a deficient number, since it is larger than the sum of its proper divisors (105043792727350).

210021200022122 is a wasteful number, since it uses less digits than its factorization.

210021200022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11064238764.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 210021200022122 its reverse (221220002120012), we get a palindrome (431241202142134).

The spelling of 210021200022122 in words is "two hundred ten trillion, twenty-one billion, two hundred million, twenty-two thousand, one hundred twenty-two".