22102111010171 has 2 divisors, whose sum is σ = 22102111010172. Its totient is φ = 22102111010170.

The previous prime is 22102111010107. The next prime is 22102111010183. The reversal of 22102111010171 is 17101011120122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22102111010171 - 2⁶ = 22102111010107 is a prime.

It is a super-2 number, since 2×22102111010171² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22102111010191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051055505085 + 11051055505086.

It is an arithmetic number, because the mean of its divisors is an integer number (11051055505086).

Almost surely, 2^{22102111010171} is an apocalyptic number.

22102111010171 is a deficient number, since it is larger than the sum of its proper divisors (1).

22102111010171 is an equidigital number, since it uses as much as digits as its factorization.

22102111010171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 20.

Adding to 22102111010171 its reverse (17101011120122), we get a palindrome (39203122130293).

The spelling of 22102111010171 in words is "twenty-two trillion, one hundred two billion, one hundred eleven million, ten thousand, one hundred seventy-one".