44222251 has 4 divisors (see below), whose sum is σ = 44310672. Its totient is φ = 44133832.

The previous prime is 44222249. The next prime is 44222257. The reversal of 44222251 is 15222244.

44222251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 44222251 - 2¹ = 44222249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44222257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43456 + ... + 44461.

It is an arithmetic number, because the mean of its divisors is an integer number (11077668).

Almost surely, 2^44222251 is an apocalyptic number.

44222251 is a deficient number, since it is larger than the sum of its proper divisors (88421).

44222251 is an equidigital number, since it uses as much as digits as its factorization.

44222251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88420.

The product of its digits is 1280, while the sum is 22.

The square root of 44222251 is about 6649.9812781691. The cubic root of 44222251 is about 353.6282472119.

Adding to 44222251 its reverse (15222244), we get a palindrome (59444495).

The spelling of 44222251 in words is "forty-four million, two hundred twenty-two thousand, two hundred fifty-one".