2221168797 has 20 divisors (see below), whose sum is σ = 3343386816. Its totient is φ = 1469468520.

The previous prime is 2221168787. The next prime is 2221168823. The reversal of 2221168797 is 7978611222.

It is a happy number.

It is not a de Polignac number, because 2221168797 - 2¹⁴ = 2221152413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221168717) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 94053 + ... + 115274.

Almost surely, 2^2221168797 is an apocalyptic number.

2221168797 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2221168797 is a deficient number, since it is larger than the sum of its proper divisors (1122218019).

2221168797 is a wasteful number, since it uses less digits than its factorization.

2221168797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209470 (or 209461 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 2221168797 is about 47129.2774928706. The cubic root of 2221168797 is about 1304.7496467827.

The spelling of 2221168797 in words is "two billion, two hundred twenty-one million, one hundred sixty-eight thousand, seven hundred ninety-seven".