1422121 has 4 divisors (see below), whose sum is σ = 1436032. Its totient is φ = 1408212.

The previous prime is 1422119. The next prime is 1422133. The reversal of 1422121 is 1212241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1422121 - 2¹ = 1422119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1422191) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6801 + ... + 7006.

It is an arithmetic number, because the mean of its divisors is an integer number (359008).

2^1422121 is an apocalyptic number.

It is an amenable number.

1422121 is a deficient number, since it is larger than the sum of its proper divisors (13911).

1422121 is a wasteful number, since it uses less digits than its factorization.

1422121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13910.

The product of its digits is 32, while the sum is 13.

The square root of 1422121 is about 1192.5271485379. The cubic root of 1422121 is about 112.4550207021.

Adding to 1422121 its reverse (1212241), we get a palindrome (2634362).

The spelling of 1422121 in words is "one million, four hundred twenty-two thousand, one hundred twenty-one".