1155171122 has 16 divisors (see below), whose sum is σ = 1994751360. Its totient is φ = 491458848.

The previous prime is 1155171119. The next prime is 1155171137. The reversal of 1155171122 is 2211715511.

It is a super-2 number, since 2×1155171122² = 2668840642205477768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1155171091 and 1155171100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299222 + ... + 303057.

It is an arithmetic number, because the mean of its divisors is an integer number (124671960).

Almost surely, 2^1155171122 is an apocalyptic number.

1155171122 is a deficient number, since it is larger than the sum of its proper divisors (839580238).

1155171122 is a wasteful number, since it uses less digits than its factorization.

1155171122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602425.

The product of its digits is 700, while the sum is 26.

The square root of 1155171122 is about 33987.8084318480. The cubic root of 1155171122 is about 1049.2575619302.

Adding to 1155171122 its reverse (2211715511), we get a palindrome (3366886633).

The spelling of 1155171122 in words is "one billion, one hundred fifty-five million, one hundred seventy-one thousand, one hundred twenty-two".