2117122226 has 8 divisors (see below), whose sum is σ = 3196997100. Its totient is φ = 1051456528.

The previous prime is 2117122219. The next prime is 2117122229. The reversal of 2117122226 is 6222217112.

It can be written as a sum of positive squares in 2 ways, for example, as 2116092001 + 1030225 = 46001^2 + 1015^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2117122195 and 2117122204.

It is not an unprimeable number, because it can be changed into a prime (2117122229) 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, 3551921 + ... + 3552516.

Almost surely, 2^2117122226 is an apocalyptic number.

2117122226 is a deficient number, since it is larger than the sum of its proper divisors (1079874874).

2117122226 is a wasteful number, since it uses less digits than its factorization.

2117122226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7104588.

The product of its digits is 1344, while the sum is 26.

The square root of 2117122226 is about 46012.1964917999. The cubic root of 2117122226 is about 1284.0501241258.

Adding to 2117122226 its reverse (6222217112), we get a palindrome (8339339338).

The spelling of 2117122226 in words is "two billion, one hundred seventeen million, one hundred twenty-two thousand, two hundred twenty-six".