22154043005 has 4 divisors (see below), whose sum is σ = 26584851612. Its totient is φ = 17723234400.

The previous prime is 22154042971. The next prime is 22154043047. The reversal of 22154043005 is 50034045122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50034045122 = 2 ⋅25017022561.

It can be written as a sum of positive squares in 2 ways, for example, as 9301059364 + 12852983641 = 96442^2 + 113371^2 .

It is not a de Polignac number, because 22154043005 - 2⁸ = 22154042749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2215404296 + ... + 2215404305.

It is an arithmetic number, because the mean of its divisors is an integer number (6646212903).

Almost surely, 2^22154043005 is an apocalyptic number.

It is an amenable number.

22154043005 is a deficient number, since it is larger than the sum of its proper divisors (4430808607).

22154043005 is an equidigital number, since it uses as much as digits as its factorization.

22154043005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4430808606.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 22154043005 its reverse (50034045122), we get a palindrome (72188088127).

The spelling of 22154043005 in words is "twenty-two billion, one hundred fifty-four million, forty-three thousand, five".