22145220245667 has 32 divisors (see below), whose sum is σ = 31429597776192. Its totient is φ = 13821401882624.

The previous prime is 22145220245627. The next prime is 22145220245671. The reversal of 22145220245667 is 76654202254122.

It is a cyclic number.

It is not a de Polignac number, because 22145220245667 - 2⁸ = 22145220245411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22145220245627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44895883 + ... + 45386459.

It is an arithmetic number, because the mean of its divisors is an integer number (982174930506).

Almost surely, 2^{22145220245667} is an apocalyptic number.

22145220245667 is a deficient number, since it is larger than the sum of its proper divisors (9284377530525).

22145220245667 is a wasteful number, since it uses less digits than its factorization.

22145220245667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495287.

The product of its (nonzero) digits is 3225600, while the sum is 48.

Adding to 22145220245667 its reverse (76654202254122), we get a palindrome (98799422499789).

The spelling of 22145220245667 in words is "twenty-two trillion, one hundred forty-five billion, two hundred twenty million, two hundred forty-five thousand, six hundred sixty-seven".