21220110102022 has 8 divisors (see below), whose sum is σ = 34278639395616. Its totient is φ = 9793896970152.

The previous prime is 21220110101989. The next prime is 21220110102029. The reversal of 21220110102022 is 22020101102212.

It is a happy number.

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

It is a super-2 number, since 2×21220110102022² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21220110101987 and 21220110102005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220110102029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408079040398 + ... + 408079040449.

It is an arithmetic number, because the mean of its divisors is an integer number (4284829924452).

Almost surely, 2^{21220110102022} is an apocalyptic number.

21220110102022 is a deficient number, since it is larger than the sum of its proper divisors (13058529293594).

21220110102022 is a wasteful number, since it uses less digits than its factorization.

21220110102022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816158080862.

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

Adding to 21220110102022 its reverse (22020101102212), we get a palindrome (43240211204234).

The spelling of 21220110102022 in words is "twenty-one trillion, two hundred twenty billion, one hundred ten million, one hundred two thousand, twenty-two".