44220332021 has 4 divisors (see below), whose sum is σ = 44222958912. Its totient is φ = 44217705132.

The previous prime is 44220331993. The next prime is 44220332053. The reversal of 44220332021 is 12023302244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44220332021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44220352021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1288031 + ... + 1321916.

It is an arithmetic number, because the mean of its divisors is an integer number (11055739728).

Almost surely, 2^44220332021 is an apocalyptic number.

It is an amenable number.

44220332021 is a deficient number, since it is larger than the sum of its proper divisors (2626891).

44220332021 is a wasteful number, since it uses less digits than its factorization.

44220332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626890.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 44220332021 its reverse (12023302244), we get a palindrome (56243634265).

The spelling of 44220332021 in words is "forty-four billion, two hundred twenty million, three hundred thirty-two thousand, twenty-one".