22121102011171 has 2 divisors, whose sum is σ = 22121102011172. Its totient is φ = 22121102011170.

The previous prime is 22121102011111. The next prime is 22121102011219. The reversal of 22121102011171 is 17111020112122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22121102011171 - 2²⁷ = 22120967793443 is a prime.

It is a super-2 number, since 2×22121102011171² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22121102011111) 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 as a sum of consecutive naturals, namely, 11060551005585 + 11060551005586.

It is an arithmetic number, because the mean of its divisors is an integer number (11060551005586).

Almost surely, 2^{22121102011171} is an apocalyptic number.

22121102011171 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121102011171 is an equidigital number, since it uses as much as digits as its factorization.

22121102011171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 22.

Adding to 22121102011171 its reverse (17111020112122), we get a palindrome (39232122123293).

The spelling of 22121102011171 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred two million, eleven thousand, one hundred seventy-one".