22110122081 has 2 divisors, whose sum is σ = 22110122082. Its totient is φ = 22110122080.

The previous prime is 22110122017. The next prime is 22110122101. The reversal of 22110122081 is 18022101122.

It is an a-pointer prime, because the next prime (22110122101) can be obtained adding 22110122081 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20227950625 + 1882171456 = 142225^2 + 43384^2 .

It is a cyclic number.

It is not a de Polignac number, because 22110122081 - 2⁶ = 22110122017 is a prime.

It is a super-2 number, since 2×22110122081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another 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 as a sum of consecutive naturals, namely, 11055061040 + 11055061041.

It is an arithmetic number, because the mean of its divisors is an integer number (11055061041).

Almost surely, 2^22110122081 is an apocalyptic number.

It is an amenable number.

22110122081 is a deficient number, since it is larger than the sum of its proper divisors (1).

22110122081 is an equidigital number, since it uses as much as digits as its factorization.

22110122081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 20.

The spelling of 22110122081 in words is "twenty-two billion, one hundred ten million, one hundred twenty-two thousand, eighty-one".