1213422 has 32 divisors (see below), whose sum is σ = 2806272. Its totient is φ = 342624.

The previous prime is 1213379. The next prime is 1213427. The reversal of 1213422 is 2243121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213427) 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 15 ways as a sum of consecutive naturals, for example, 6928 + ... + 7100.

It is an arithmetic number, because the mean of its divisors is an integer number (87696).

2^1213422 is an apocalyptic number.

1213422 is an abundant number, since it is smaller than the sum of its proper divisors (1592850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213422 is a wasteful number, since it uses less digits than its factorization.

1213422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352.

The product of its digits is 96, while the sum is 15.

The square root of 1213422 is about 1101.5543563529. The cubic root of 1213422 is about 106.6605834204.

Adding to 1213422 its reverse (2243121), we get a palindrome (3456543).

The spelling of 1213422 in words is "one million, two hundred thirteen thousand, four hundred twenty-two".