44332052221 has 4 divisors (see below), whose sum is σ = 44336352892. Its totient is φ = 44327751552.

The previous prime is 44332052197. The next prime is 44332052239. The reversal of 44332052221 is 12225023344.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40798344196 + 3533708025 = 201986^2 + 59445^2 .

It is a cyclic number.

It is not a de Polignac number, because 44332052221 - 2⁵ = 44332052189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44332052221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44332052321) 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, 2134836 + ... + 2155501.

It is an arithmetic number, because the mean of its divisors is an integer number (11084088223).

Almost surely, 2^44332052221 is an apocalyptic number.

It is an amenable number.

44332052221 is a deficient number, since it is larger than the sum of its proper divisors (4300671).

44332052221 is a wasteful number, since it uses less digits than its factorization.

44332052221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4300670.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 44332052221 its reverse (12225023344), we get a palindrome (56557075565).

The spelling of 44332052221 in words is "forty-four billion, three hundred thirty-two million, fifty-two thousand, two hundred twenty-one".