22154042344011 has 4 divisors (see below), whose sum is σ = 29538723125352. Its totient is φ = 14769361562672.

The previous prime is 22154042343959. The next prime is 22154042344043. The reversal of 22154042344011 is 11044324045122.

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 22154042344011 - 2⁶ = 22154042343947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22154042344051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3692340390666 + ... + 3692340390671.

It is an arithmetic number, because the mean of its divisors is an integer number (7384680781338).

Almost surely, 2^{22154042344011} is an apocalyptic number.

22154042344011 is a deficient number, since it is larger than the sum of its proper divisors (7384680781341).

22154042344011 is an equidigital number, since it uses as much as digits as its factorization.

22154042344011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7384680781340.

The product of its (nonzero) digits is 30720, while the sum is 33.

Adding to 22154042344011 its reverse (11044324045122), we get a palindrome (33198366389133).

The spelling of 22154042344011 in words is "twenty-two trillion, one hundred fifty-four billion, forty-two million, three hundred forty-four thousand, eleven".