22155043234 has 8 divisors (see below), whose sum is σ = 34304583168. Its totient is φ = 10720182180.

The previous prime is 22155043201. The next prime is 22155043237. The reversal of 22155043234 is 43234055122.

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

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 22155043196 and 22155043205.

It is not an unprimeable number, because it can be changed into a prime (22155043237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178669642 + ... + 178669765.

It is an arithmetic number, because the mean of its divisors is an integer number (4288072896).

Almost surely, 2^22155043234 is an apocalyptic number.

22155043234 is a deficient number, since it is larger than the sum of its proper divisors (12149539934).

22155043234 is a wasteful number, since it uses less digits than its factorization.

22155043234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357339440.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 22155043234 its reverse (43234055122), we get a palindrome (65389098356).

The spelling of 22155043234 in words is "twenty-two billion, one hundred fifty-five million, forty-three thousand, two hundred thirty-four".