21222102110122 has 32 divisors (see below), whose sum is σ = 33801340708800. Its totient is φ = 9964968686208.

The previous prime is 21222102110117. The next prime is 21222102110161. The reversal of 21222102110122 is 22101120122212.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 21222102110122.

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, 372718 + ... + 6525574.

It is an arithmetic number, because the mean of its divisors is an integer number (1056291897150).

Almost surely, 2^{21222102110122} is an apocalyptic number.

21222102110122 is a deficient number, since it is larger than the sum of its proper divisors (12579238598678).

21222102110122 is a wasteful number, since it uses less digits than its factorization.

21222102110122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6153670.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 21222102110122 its reverse (22101120122212), we get a palindrome (43323222232334).

The spelling of 21222102110122 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred two million, one hundred ten thousand, one hundred twenty-two".