44042401221 has 32 divisors (see below), whose sum is σ = 72325306368. Its totient is φ = 23214893760.

The previous prime is 44042401213. The next prime is 44042401231. The reversal of 44042401221 is 12210424044.

It is not a de Polignac number, because 44042401221 - 2³ = 44042401213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44042401191 and 44042401200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44042401231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 339286 + ... + 450776.

It is an arithmetic number, because the mean of its divisors is an integer number (2260165824).

Almost surely, 2^44042401221 is an apocalyptic number.

It is an amenable number.

44042401221 is a deficient number, since it is larger than the sum of its proper divisors (28282905147).

44042401221 is a wasteful number, since it uses less digits than its factorization.

44042401221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112961.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 44042401221 its reverse (12210424044), we get a palindrome (56252825265).

The spelling of 44042401221 in words is "forty-four billion, forty-two million, four hundred one thousand, two hundred twenty-one".