1222000442 has 16 divisors (see below), whose sum is σ = 2059827840. Its totient is φ = 539478192.

The previous prime is 1222000441. The next prime is 1222000453. The reversal of 1222000442 is 2440002221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222000442.

It is not an unprimeable number, because it can be changed into a prime (1222000441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1021142 + ... + 1022337.

It is an arithmetic number, because the mean of its divisors is an integer number (128739240).

Almost surely, 2^1222000442 is an apocalyptic number.

1222000442 is a deficient number, since it is larger than the sum of its proper divisors (837827398).

1222000442 is a wasteful number, since it uses less digits than its factorization.

1222000442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043517.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1222000442 is about 34957.1229079282. The cubic root of 1222000442 is about 1069.1134362979.

Adding to 1222000442 its reverse (2440002221), we get a palindrome (3662002663).

The spelling of 1222000442 in words is "one billion, two hundred twenty-two million, four hundred forty-two", and thus it is an aban number.