12220301444 has 18 divisors (see below), whose sum is σ = 23157110970. Its totient is φ = 5640138816.

The previous prime is 12220301389. The next prime is 12220301461. The reversal of 12220301444 is 44410302221.

It can be written as a sum of positive squares in 3 ways, for example, as 402002500 + 11818298944 = 20050^2 + 108712^2 .

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 in 5 ways as a sum of consecutive naturals, for example, 9038009 + ... + 9039360.

It is an arithmetic number, because the mean of its divisors is an integer number (1286506165).

Almost surely, 2^12220301444 is an apocalyptic number.

It is an amenable number.

12220301444 is a deficient number, since it is larger than the sum of its proper divisors (10936809526).

12220301444 is a wasteful number, since it uses less digits than its factorization.

12220301444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18077399 (or 18077384 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 12220301444 its reverse (44410302221), we get a palindrome (56630603665).

The spelling of 12220301444 in words is "twelve billion, two hundred twenty million, three hundred one thousand, four hundred forty-four".