1222177116 has 12 divisors (see below), whose sum is σ = 2851746632. Its totient is φ = 407392368.

The previous prime is 1222177111. The next prime is 1222177171. The reversal of 1222177116 is 6117712221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222177111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50924035 + ... + 50924058.

Almost surely, 2^1222177116 is an apocalyptic number.

It is an amenable number.

1222177116 is an abundant number, since it is smaller than the sum of its proper divisors (1629569516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222177116 is a wasteful number, since it uses less digits than its factorization.

1222177116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101848100 (or 101848098 counting only the distinct ones).

The product of its digits is 2352, while the sum is 30.

The square root of 1222177116 is about 34959.6498266215. The cubic root of 1222177116 is about 1069.1649571317.

Adding to 1222177116 its reverse (6117712221), we get a palindrome (7339889337).

The spelling of 1222177116 in words is "one billion, two hundred twenty-two million, one hundred seventy-seven thousand, one hundred sixteen".