1421122 has 4 divisors (see below), whose sum is σ = 2131686. Its totient is φ = 710560.

The previous prime is 1421113. The next prime is 1421141. The reversal of 1421122 is 2211241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2211241 = 17 ⋅130073.

It can be written as a sum of positive squares in only one way, i.e., 1343281 + 77841 = 1159^2 + 279^2 .

It is an Ulam 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 as a sum of consecutive naturals, namely, 355279 + ... + 355282.

2^1421122 is an apocalyptic number.

1421122 is a deficient number, since it is larger than the sum of its proper divisors (710564).

1421122 is an equidigital number, since it uses as much as digits as its factorization.

1421122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710563.

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

The square root of 1421122 is about 1192.1082165643. The cubic root of 1421122 is about 112.4286823709.

Adding to 1421122 its reverse (2211241), we get a palindrome (3632363).

The spelling of 1421122 in words is "one million, four hundred twenty-one thousand, one hundred twenty-two".