44402011221 has 144 divisors (see below), whose sum is σ = 71359190784. Its totient is φ = 24454324224.

The previous prime is 44402011117. The next prime is 44402011223. The reversal of 44402011221 is 12211020444.

It is not a de Polignac number, because 44402011221 - 2¹⁴ = 44401994837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44402011223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 457752645 + ... + 457752741.

It is an arithmetic number, because the mean of its divisors is an integer number (495549936).

Almost surely, 2^44402011221 is an apocalyptic number.

It is an amenable number.

44402011221 is a deficient number, since it is larger than the sum of its proper divisors (26957179563).

44402011221 is a wasteful number, since it uses less digits than its factorization.

44402011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 44402011221 its reverse (12211020444), we get a palindrome (56613031665).

The spelling of 44402011221 in words is "forty-four billion, four hundred two million, eleven thousand, two hundred twenty-one".