2122175445 has 32 divisors (see below), whose sum is σ = 3708198144. Its totient is φ = 1030041600.

The previous prime is 2122175413. The next prime is 2122175483. The reversal of 2122175445 is 5445712212.

It is not a de Polignac number, because 2122175445 - 2⁵ = 2122175413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62796 + ... + 90485.

It is an arithmetic number, because the mean of its divisors is an integer number (115881192).

Almost surely, 2^2122175445 is an apocalyptic number.

It is an amenable number.

2122175445 is a deficient number, since it is larger than the sum of its proper divisors (1586022699).

2122175445 is a wasteful number, since it uses less digits than its factorization.

2122175445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153373.

The product of its digits is 22400, while the sum is 33.

The square root of 2122175445 is about 46067.0754986682. The cubic root of 2122175445 is about 1285.0709171700.

Adding to 2122175445 its reverse (5445712212), we get a palindrome (7567887657).

The spelling of 2122175445 in words is "two billion, one hundred twenty-two million, one hundred seventy-five thousand, four hundred forty-five".