2217126379 has 12 divisors (see below), whose sum is σ = 2404860096. Its totient is φ = 2043112032.

The previous prime is 2217126343. The next prime is 2217126391. The reversal of 2217126379 is 9736217122.

It is not a de Polignac number, because 2217126379 - 2⁷ = 2217126251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2217126319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91777 + ... + 113389.

It is an arithmetic number, because the mean of its divisors is an integer number (200405008).

Almost surely, 2^2217126379 is an apocalyptic number.

2217126379 is a deficient number, since it is larger than the sum of its proper divisors (187733717).

2217126379 is a wasteful number, since it uses less digits than its factorization.

2217126379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22246 (or 22233 counting only the distinct ones).

The product of its digits is 63504, while the sum is 40.

The square root of 2217126379 is about 47086.3714783800. The cubic root of 2217126379 is about 1303.9576393816.

The spelling of 2217126379 in words is "two billion, two hundred seventeen million, one hundred twenty-six thousand, three hundred seventy-nine".