22110122012021 has 2 divisors, whose sum is σ = 22110122012022. Its totient is φ = 22110122012020.

The previous prime is 22110122012003. The next prime is 22110122012023. The reversal of 22110122012021 is 12021022101122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14689673609521 + 7420448402500 = 3832711^2 + 2724050^2 .

It is a cyclic number.

It is not a de Polignac number, because 22110122012021 - 2¹⁰ = 22110122010997 is a prime.

Together with 22110122012023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22110122012023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055061006010 + 11055061006011.

It is an arithmetic number, because the mean of its divisors is an integer number (11055061006011).

Almost surely, 2^{22110122012021} is an apocalyptic number.

It is an amenable number.

22110122012021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22110122012021 is an equidigital number, since it uses as much as digits as its factorization.

22110122012021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22110122012021 its reverse (12021022101122), we get a palindrome (34131144113143).

The spelling of 22110122012021 in words is "twenty-two trillion, one hundred ten billion, one hundred twenty-two million, twelve thousand, twenty-one".