1171161022 has 4 divisors (see below), whose sum is σ = 1756741536. Its totient is φ = 585580510.

The previous prime is 1171160987. The next prime is 1171161049. The reversal of 1171161022 is 2201611711.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1171160984 and 1171161002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 292790254 + ... + 292790257.

It is an arithmetic number, because the mean of its divisors is an integer number (439185384).

Almost surely, 2^1171161022 is an apocalyptic number.

1171161022 is a deficient number, since it is larger than the sum of its proper divisors (585580514).

1171161022 is an equidigital number, since it uses as much as digits as its factorization.

1171161022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585580513.

The product of its (nonzero) digits is 168, while the sum is 22.

The square root of 1171161022 is about 34222.2299390323. The cubic root of 1171161022 is about 1054.0766752871.

Adding to 1171161022 its reverse (2201611711), we get a palindrome (3372772733).

The spelling of 1171161022 in words is "one billion, one hundred seventy-one million, one hundred sixty-one thousand, twenty-two".