2165122234 has 8 divisors (see below), whose sum is σ = 3542927328. Its totient is φ = 984146460.

The previous prime is 2165122217. The next prime is 2165122249. The reversal of 2165122234 is 4322215612.

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

It is a super-2 number, since 2×2165122234² = 9375508576322301512, which contains 22 as substring.

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, 49207302 + ... + 49207345.

It is an arithmetic number, because the mean of its divisors is an integer number (442865916).

Almost surely, 2^2165122234 is an apocalyptic number.

2165122234 is a deficient number, since it is larger than the sum of its proper divisors (1377805094).

2165122234 is a wasteful number, since it uses less digits than its factorization.

2165122234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98414660.

The product of its digits is 5760, while the sum is 28.

The square root of 2165122234 is about 46530.8739870637. The cubic root of 2165122234 is about 1293.6818146550.

Adding to 2165122234 its reverse (4322215612), we get a palindrome (6487337846).

The spelling of 2165122234 in words is "two billion, one hundred sixty-five million, one hundred twenty-two thousand, two hundred thirty-four".