1117161212 has 12 divisors (see below), whose sum is σ = 1960361760. Its totient is φ = 557057856.

The previous prime is 1117161203. The next prime is 1117161223. The reversal of 1117161212 is 2121617111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379037 + ... + 381972.

It is an arithmetic number, because the mean of its divisors is an integer number (163363480).

Almost surely, 2^1117161212 is an apocalyptic number.

It is an amenable number.

1117161212 is a deficient number, since it is larger than the sum of its proper divisors (843200548).

1117161212 is a wasteful number, since it uses less digits than its factorization.

1117161212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761380 (or 761378 counting only the distinct ones).

The product of its digits is 168, while the sum is 23.

The square root of 1117161212 is about 33423.9616443054. The cubic root of 1117161212 is about 1037.6206738622.

Adding to 1117161212 its reverse (2121617111), we get a palindrome (3238778323).

The spelling of 1117161212 in words is "one billion, one hundred seventeen million, one hundred sixty-one thousand, two hundred twelve".