2122145233 has 4 divisors (see below), whose sum is σ = 2285387188. Its totient is φ = 1958903280.

The previous prime is 2122145227. The next prime is 2122145237. The reversal of 2122145233 is 3325412212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 718668864 + 1403476369 = 26808^2 + 37463^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122145233 - 2⁹ = 2122144721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122145198 and 2122145207.

It is not an unprimeable number, because it can be changed into a prime (2122145237) 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, 81620958 + ... + 81620983.

It is an arithmetic number, because the mean of its divisors is an integer number (571346797).

Almost surely, 2^2122145233 is an apocalyptic number.

It is an amenable number.

2122145233 is a deficient number, since it is larger than the sum of its proper divisors (163241955).

2122145233 is a wasteful number, since it uses less digits than its factorization.

2122145233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163241954.

The product of its digits is 2880, while the sum is 25.

The square root of 2122145233 is about 46066.7475843476. The cubic root of 2122145233 is about 1285.0648189078.

Adding to 2122145233 its reverse (3325412212), we get a palindrome (5447557445).

The spelling of 2122145233 in words is "two billion, one hundred twenty-two million, one hundred forty-five thousand, two hundred thirty-three".