1421222 has 8 divisors (see below), whose sum is σ = 2325672. Its totient is φ = 646000.

The previous prime is 1421221. The next prime is 1421227. The reversal of 1421222 is 2221241.

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 = 1421197 and 1421206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32279 + ... + 32322.

It is an arithmetic number, because the mean of its divisors is an integer number (290709).

2^1421222 is an apocalyptic number.

1421222 is a deficient number, since it is larger than the sum of its proper divisors (904450).

1421222 is a wasteful number, since it uses less digits than its factorization.

1421222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64614.

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

The square root of 1421222 is about 1192.1501583274. The cubic root of 1421222 is about 112.4313193963.

Adding to 1421222 its reverse (2221241), we get a palindrome (3642463).

The spelling of 1421222 in words is "one million, four hundred twenty-one thousand, two hundred twenty-two".