2189309128922 has 8 divisors (see below), whose sum is σ = 3288814454196. Its totient is φ = 1093037644192.

The previous prime is 2189309128907. The next prime is 2189309128957. The reversal of 2189309128922 is 2298219039812.

It can be written as a sum of positive squares in 2 ways, for example, as 2175356558281 + 13952570641 = 1474909^2 + 118121^2 .

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

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, 808458443 + ... + 808461150.

Almost surely, 2^{2189309128922} is an apocalyptic number.

2189309128922 is a deficient number, since it is larger than the sum of its proper divisors (1099505325274).

2189309128922 is a wasteful number, since it uses less digits than its factorization.

2189309128922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616920272.

The product of its (nonzero) digits is 2239488, while the sum is 56.

The spelling of 2189309128922 in words is "two trillion, one hundred eighty-nine billion, three hundred nine million, one hundred twenty-eight thousand, nine hundred twenty-two".