2122894385 has 16 divisors (see below), whose sum is σ = 2584539984. Its totient is φ = 1673644032.

The previous prime is 2122894381. The next prime is 2122894439. The reversal of 2122894385 is 5834982212.

It can be written as a sum of positive squares in 8 ways, for example, as 14615329 + 2108279056 = 3823^2 + 45916^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122894385 - 2² = 2122894381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122894381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 747929 + ... + 750761.

It is an arithmetic number, because the mean of its divisors is an integer number (161533749).

Almost surely, 2^2122894385 is an apocalyptic number.

It is an amenable number.

2122894385 is a deficient number, since it is larger than the sum of its proper divisors (461645599).

2122894385 is a wasteful number, since it uses less digits than its factorization.

2122894385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4964.

The product of its digits is 276480, while the sum is 44.

The square root of 2122894385 is about 46074.8780247979. The cubic root of 2122894385 is about 1285.2160174218.

The spelling of 2122894385 in words is "two billion, one hundred twenty-two million, eight hundred ninety-four thousand, three hundred eighty-five".