2121104422 has 4 divisors (see below), whose sum is σ = 3181656636. Its totient is φ = 1060552210.

The previous prime is 2121104389. The next prime is 2121104423. The reversal of 2121104422 is 2244011212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2121104422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121104423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530276104 + ... + 530276107.

It is an arithmetic number, because the mean of its divisors is an integer number (795414159).

Almost surely, 2^2121104422 is an apocalyptic number.

2121104422 is a deficient number, since it is larger than the sum of its proper divisors (1060552214).

2121104422 is a wasteful number, since it uses less digits than its factorization.

2121104422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060552213.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2121104422 is about 46055.4494278364. The cubic root of 2121104422 is about 1284.8546968892.

Adding to 2121104422 its reverse (2244011212), we get a palindrome (4365115634).

The spelling of 2121104422 in words is "two billion, one hundred twenty-one million, one hundred four thousand, four hundred twenty-two".