22025444312215 has 16 divisors (see below), whose sum is σ = 26519174233920. Its totient is φ = 17561335334400.

The previous prime is 22025444312213. The next prime is 22025444312227. The reversal of 22025444312215 is 51221344452022.

It is a happy number.

It is not a de Polignac number, because 22025444312215 - 2¹ = 22025444312213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22025444312213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2235475 + ... + 7003444.

It is an arithmetic number, because the mean of its divisors is an integer number (1657448389620).

Almost surely, 2^{22025444312215} is an apocalyptic number.

22025444312215 is a deficient number, since it is larger than the sum of its proper divisors (4493729921705).

22025444312215 is a wasteful number, since it uses less digits than its factorization.

22025444312215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9240522.

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 22025444312215 its reverse (51221344452022), we get a palindrome (73246788764237).

The spelling of 22025444312215 in words is "twenty-two trillion, twenty-five billion, four hundred forty-four million, three hundred twelve thousand, two hundred fifteen".