2121323422 has 8 divisors (see below), whose sum is σ = 3182216400. Its totient is φ = 1060584624.

The previous prime is 2121323411. The next prime is 2121323423. The reversal of 2121323422 is 2243231212.

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

It is a junction number, because it is equal to n+sod(n) for n = 2121323393 and 2121323402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121323423) 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 in 3 ways as a sum of consecutive naturals, for example, 6279 + ... + 65437.

It is an arithmetic number, because the mean of its divisors is an integer number (397777050).

Almost surely, 2^2121323422 is an apocalyptic number.

2121323422 is a deficient number, since it is larger than the sum of its proper divisors (1060892978).

2121323422 is a wasteful number, since it uses less digits than its factorization.

2121323422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77090.

The product of its digits is 1152, while the sum is 22.

The square root of 2121323422 is about 46057.8269352778. The cubic root of 2121323422 is about 1284.8989149692.

Adding to 2121323422 its reverse (2243231212), we get a palindrome (4364554634).

The spelling of 2121323422 in words is "two billion, one hundred twenty-one million, three hundred twenty-three thousand, four hundred twenty-two".