22215441 has 8 divisors (see below), whose sum is σ = 29718304. Its totient is φ = 14761440.

The previous prime is 22215409. The next prime is 22215491. The reversal of 22215441 is 14451222.

22215441 is nontrivially palindromic in base 8.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22215441 - 2⁵ = 22215409 is a prime.

It is a super-3 number, since 3×22215441³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22215491) 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 7 ways as a sum of consecutive naturals, for example, 11140 + ... + 12981.

It is an arithmetic number, because the mean of its divisors is an integer number (3714788).

Almost surely, 2^22215441 is an apocalyptic number.

It is an amenable number.

22215441 is a deficient number, since it is larger than the sum of its proper divisors (7502863).

22215441 is a wasteful number, since it uses less digits than its factorization.

22215441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24431.

The product of its digits is 640, while the sum is 21.

The square root of 22215441 is about 4713.3258957980. The cubic root of 22215441 is about 281.1156213362.

Adding to 22215441 its reverse (14451222), we get a palindrome (36666663).

The spelling of 22215441 in words is "twenty-two million, two hundred fifteen thousand, four hundred forty-one".