2181369922 has 16 divisors (see below), whose sum is σ = 3374773632. Its totient is φ = 1056905200.

The previous prime is 2181369899. The next prime is 2181369941. The reversal of 2181369922 is 2299631812.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105388 + ... + 124375.

It is an arithmetic number, because the mean of its divisors is an integer number (210923352).

Almost surely, 2^2181369922 is an apocalyptic number.

2181369922 is a deficient number, since it is larger than the sum of its proper divisors (1193403710).

2181369922 is a wasteful number, since it uses less digits than its factorization.

2181369922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229913.

The product of its digits is 93312, while the sum is 43.

The square root of 2181369922 is about 46705.1380685252. The cubic root of 2181369922 is about 1296.9098045777.

The spelling of 2181369922 in words is "two billion, one hundred eighty-one million, three hundred sixty-nine thousand, nine hundred twenty-two".