544401021121 has 16 divisors (see below), whose sum is σ = 552129177600. Its totient is φ = 536721858000.

The previous prime is 544401021119. The next prime is 544401021163. The reversal of 544401021121 is 121120104445.

It is a cyclic number.

It is not a de Polignac number, because 544401021121 - 2¹ = 544401021119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544401024121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86423430 + ... + 86429728.

It is an arithmetic number, because the mean of its divisors is an integer number (34508073600).

Almost surely, 2^544401021121 is an apocalyptic number.

It is an amenable number.

544401021121 is a deficient number, since it is larger than the sum of its proper divisors (7728156479).

544401021121 is a wasteful number, since it uses less digits than its factorization.

544401021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9996.

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 544401021121 its reverse (121120104445), we get a palindrome (665521125566).

The spelling of 544401021121 in words is "five hundred forty-four billion, four hundred one million, twenty-one thousand, one hundred twenty-one".