1444401221312 has 28 divisors (see below), whose sum is σ = 3275695627920. Its totient is φ = 619029094656.

The previous prime is 1444401221213. The next prime is 1444401221399. The reversal of 1444401221312 is 2131221044441.

It is a tau number, because it is divible by the number of its divisors (28).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1612054487 + ... + 1612055382.

Almost surely, 2^{1444401221312} is an apocalyptic number.

It is an amenable number.

1444401221312 is an abundant number, since it is smaller than the sum of its proper divisors (1831294406608).

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

1444401221312 is an equidigital number, since it uses as much as digits as its factorization.

1444401221312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224109888 (or 3224109878 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 1444401221312 its reverse (2131221044441), we get a palindrome (3575622265753).

The spelling of 1444401221312 in words is "one trillion, four hundred forty-four billion, four hundred one million, two hundred twenty-one thousand, three hundred twelve".