22110031223221 has 8 divisors (see below), whose sum is σ = 22486356360000. Its totient is φ = 21733758714720.

The previous prime is 22110031223213. The next prime is 22110031223237. The reversal of 22110031223221 is 12232213001122.

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

It is a cyclic number.

It is not a de Polignac number, because 22110031223221 - 2³ = 22110031223213 is a prime.

It is a super-2 number, since 2×22110031223221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22110031223192 and 22110031223201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22110031223251) 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 7 ways as a sum of consecutive naturals, for example, 12309225 + ... + 13990606.

It is an arithmetic number, because the mean of its divisors is an integer number (2810794545000).

Almost surely, 2^{22110031223221} is an apocalyptic number.

It is an amenable number.

22110031223221 is a deficient number, since it is larger than the sum of its proper divisors (376325136779).

22110031223221 is a wasteful number, since it uses less digits than its factorization.

22110031223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26314139.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 22110031223221 its reverse (12232213001122), we get a palindrome (34342244224343).

The spelling of 22110031223221 in words is "twenty-two trillion, one hundred ten billion, thirty-one million, two hundred twenty-three thousand, two hundred twenty-one".