1022120222171 has 2 divisors, whose sum is σ = 1022120222172. Its totient is φ = 1022120222170.

The previous prime is 1022120222087. The next prime is 1022120222239. The reversal of 1022120222171 is 1712220212201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022120222171 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022120224171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511060111085 + 511060111086.

It is an arithmetic number, because the mean of its divisors is an integer number (511060111086).

Almost surely, 2^{1022120222171} is an apocalyptic number.

1022120222171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022120222171 is an equidigital number, since it uses as much as digits as its factorization.

1022120222171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 1022120222171 its reverse (1712220212201), we get a palindrome (2734340434372).

The spelling of 1022120222171 in words is "one trillion, twenty-two billion, one hundred twenty million, two hundred twenty-two thousand, one hundred seventy-one".