44441221401 has 16 divisors (see below), whose sum is σ = 66126361600. Its totient is φ = 29498099184.

The previous prime is 44441221399. The next prime is 44441221403. The reversal of 44441221401 is 10412214444.

It is a happy number.

44441221401 is a `hidden beast` number, since 4 + 4 + 441 + 2 + 214 + 0 + 1 = 666.

44441221401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (44441221399) and next prime (44441221403).

It is not a de Polignac number, because 44441221401 - 2¹ = 44441221399 is a prime.

It is a super-2 number, since 2×44441221401² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44441221403) 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, 3587641 + ... + 3600006.

It is an arithmetic number, because the mean of its divisors is an integer number (4132897600).

Almost surely, 2^44441221401 is an apocalyptic number.

It is an amenable number.

44441221401 is a deficient number, since it is larger than the sum of its proper divisors (21685140199).

44441221401 is a wasteful number, since it uses less digits than its factorization.

44441221401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7187885 (or 7187879 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 44441221401 its reverse (10412214444), we get a palindrome (54853435845).

The spelling of 44441221401 in words is "forty-four billion, four hundred forty-one million, two hundred twenty-one thousand, four hundred one".