22110122021 has 16 divisors (see below), whose sum is σ = 25243775424. Its totient is φ = 19184235264.

The previous prime is 22110122017. The next prime is 22110122081. The reversal of 22110122021 is 12022101122.

It is a cyclic number.

It is not a de Polignac number, because 22110122021 - 2² = 22110122017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22110121987 and 22110122005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22110122011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110366 + ... + 237488.

It is an arithmetic number, because the mean of its divisors is an integer number (1577735964).

Almost surely, 2^22110122021 is an apocalyptic number.

It is an amenable number.

22110122021 is a deficient number, since it is larger than the sum of its proper divisors (3133653403).

22110122021 is a wasteful number, since it uses less digits than its factorization.

22110122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127940.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22110122021 its reverse (12022101122), we get a palindrome (34132223143).

The spelling of 22110122021 in words is "twenty-two billion, one hundred ten million, one hundred twenty-two thousand, twenty-one".