2121422 has 12 divisors (see below), whose sum is σ = 3266808. Its totient is φ = 1033200.

The previous prime is 2121403. The next prime is 2121433. The reversal of 2121422 is 2241212.

2121422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2121397 and 2121406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3047 + ... + 3677.

It is an arithmetic number, because the mean of its divisors is an integer number (272234).

2^2121422 is an apocalyptic number.

2121422 is a deficient number, since it is larger than the sum of its proper divisors (1145386).

2121422 is an equidigital number, since it uses as much as digits as its factorization.

2121422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 674 counting only the distinct ones).

The product of its digits is 64, while the sum is 14.

The square root of 2121422 is about 1456.5102128032. The cubic root of 2121422 is about 128.4918817765.

Adding to 2121422 its reverse (2241212), we get a palindrome (4362634).

The spelling of 2121422 in words is "two million, one hundred twenty-one thousand, four hundred twenty-two".