2122164605 has 8 divisors (see below), whose sum is σ = 2778106464. Its totient is φ = 1543392400.

The previous prime is 2122164601. The next prime is 2122164607. The reversal of 2122164605 is 5064612212.

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

It is not a de Polignac number, because 2122164605 - 2² = 2122164601 is a prime.

It is a super-2 number, since 2×2122164605² = 9007165221429612050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122164601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19292351 + ... + 19292460.

It is an arithmetic number, because the mean of its divisors is an integer number (347263308).

Almost surely, 2^2122164605 is an apocalyptic number.

It is an amenable number.

2122164605 is a deficient number, since it is larger than the sum of its proper divisors (655941859).

2122164605 is a wasteful number, since it uses less digits than its factorization.

2122164605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38584827.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2122164605 is about 46066.9578439905. The cubic root of 2122164605 is about 1285.0687291334.

Adding to 2122164605 its reverse (5064612212), we get a palindrome (7186776817).

The spelling of 2122164605 in words is "two billion, one hundred twenty-two million, one hundred sixty-four thousand, six hundred five".