21222110123022 has 16 divisors (see below), whose sum is σ = 42449799964032. Its totient is φ = 7073106754680.

The previous prime is 21222110122963. The next prime is 21222110123033. The reversal of 21222110123022 is 22032101122212.

It is a super-4 number, since 4×21222110123022⁴ (a number of 54 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21222110123022.

It is a congruent number.

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, 232438804 + ... + 232530087.

It is an arithmetic number, because the mean of its divisors is an integer number (2653112497752).

Almost surely, 2^{21222110123022} is an apocalyptic number.

21222110123022 is an abundant number, since it is smaller than the sum of its proper divisors (21227689841010).

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

21222110123022 is a wasteful number, since it uses less digits than its factorization.

21222110123022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464976503.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21222110123022 its reverse (22032101122212), we get a palindrome (43254211245234).

The spelling of 21222110123022 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred ten million, one hundred twenty-three thousand, twenty-two".