22215541421345 has 8 divisors (see below), whose sum is σ = 26678860971840. Its totient is φ = 17758958959600.

The previous prime is 22215541421323. The next prime is 22215541421347. The reversal of 22215541421345 is 54312414551222.

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

It is not a de Polignac number, because 22215541421345 - 2⁸ = 22215541421089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22215541421347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1684264931 + ... + 1684278120.

It is an arithmetic number, because the mean of its divisors is an integer number (3334857621480).

Almost surely, 2^{22215541421345} is an apocalyptic number.

It is an amenable number.

22215541421345 is a deficient number, since it is larger than the sum of its proper divisors (4463319550495).

22215541421345 is a wasteful number, since it uses less digits than its factorization.

22215541421345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368544375.

The product of its digits is 384000, while the sum is 41.

Adding to 22215541421345 its reverse (54312414551222), we get a palindrome (76527955972567).

The spelling of 22215541421345 in words is "twenty-two trillion, two hundred fifteen billion, five hundred forty-one million, four hundred twenty-one thousand, three hundred forty-five".