2544221321401 has 4 divisors (see below), whose sum is σ = 2603389259152. Its totient is φ = 2485053383652.

The previous prime is 2544221321363. The next prime is 2544221321423. The reversal of 2544221321401 is 1041231224452.

2544221321401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2544221321401 - 2¹⁵ = 2544221288633 is a prime.

It is a super-3 number, since 3×2544221321401³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2544221321501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29583968811 + ... + 29583968896.

It is an arithmetic number, because the mean of its divisors is an integer number (650847314788).

Almost surely, 2^{2544221321401} is an apocalyptic number.

It is an amenable number.

2544221321401 is a deficient number, since it is larger than the sum of its proper divisors (59167937751).

2544221321401 is an equidigital number, since it uses as much as digits as its factorization.

2544221321401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59167937750.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 2544221321401 its reverse (1041231224452), we get a palindrome (3585452545853).

The spelling of 2544221321401 in words is "two trillion, five hundred forty-four billion, two hundred twenty-one million, three hundred twenty-one thousand, four hundred one".