1222001011171 has 2 divisors, whose sum is σ = 1222001011172. Its totient is φ = 1222001011170.

The previous prime is 1222001011109. The next prime is 1222001011183. The reversal of 1222001011171 is 1711101002221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222001011171 - 2¹³ = 1222001002979 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222001015171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611000505585 + 611000505586.

It is an arithmetic number, because the mean of its divisors is an integer number (611000505586).

Almost surely, 2^{1222001011171} is an apocalyptic number.

1222001011171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222001011171 is an equidigital number, since it uses as much as digits as its factorization.

1222001011171 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 19.

Adding to 1222001011171 its reverse (1711101002221), we get a palindrome (2933102013392).

The spelling of 1222001011171 in words is "one trillion, two hundred twenty-two billion, one million, eleven thousand, one hundred seventy-one".