44220412213 has 4 divisors (see below), whose sum is σ = 44245298860. Its totient is φ = 44195525568.

The previous prime is 44220412193. The next prime is 44220412231. The reversal of 44220412213 is 31221402244.

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 23537082724 + 20683329489 = 153418^2 + 143817^2 .

It is a cyclic number.

It is not a de Polignac number, because 44220412213 - 2³³ = 35630477621 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 (44220442213) 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, 12440658 + ... + 12444211.

It is an arithmetic number, because the mean of its divisors is an integer number (11061324715).

Almost surely, 2^44220412213 is an apocalyptic number.

It is an amenable number.

44220412213 is a deficient number, since it is larger than the sum of its proper divisors (24886647).

44220412213 is a wasteful number, since it uses less digits than its factorization.

44220412213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24886646.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 44220412213 its reverse (31221402244), we get a palindrome (75441814457).

The spelling of 44220412213 in words is "forty-four billion, two hundred twenty million, four hundred twelve thousand, two hundred thirteen".