44224052021 has 2 divisors, whose sum is σ = 44224052022. Its totient is φ = 44224052020.

The previous prime is 44224051981. The next prime is 44224052023. The reversal of 44224052021 is 12025042244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34676026225 + 9548025796 = 186215^2 + 97714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44224052021 is a prime.

It is a super-2 number, since 2×44224052021² (a number of 22 digits) contains 22 as substring.

Together with 44224052023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44224052023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22112026010 + 22112026011.

It is an arithmetic number, because the mean of its divisors is an integer number (22112026011).

Almost surely, 2^44224052021 is an apocalyptic number.

It is an amenable number.

44224052021 is a deficient number, since it is larger than the sum of its proper divisors (1).

44224052021 is an equidigital number, since it uses as much as digits as its factorization.

44224052021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 44224052021 its reverse (12025042244), we get a palindrome (56249094265).

The spelling of 44224052021 in words is "forty-four billion, two hundred twenty-four million, fifty-two thousand, twenty-one".