22155123203 has 8 divisors (see below), whose sum is σ = 22346903040. Its totient is φ = 21963614400.

The previous prime is 22155123169. The next prime is 22155123239. The reversal of 22155123203 is 30232155122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22155123203 - 2⁶ = 22155123139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22155123703) 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 7 ways as a sum of consecutive naturals, for example, 98183 + ... + 232271.

It is an arithmetic number, because the mean of its divisors is an integer number (2793362880).

Almost surely, 2^22155123203 is an apocalyptic number.

22155123203 is a deficient number, since it is larger than the sum of its proper divisors (191779837).

22155123203 is a wasteful number, since it uses less digits than its factorization.

22155123203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135517.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 22155123203 its reverse (30232155122), we get a palindrome (52387278325).

The spelling of 22155123203 in words is "twenty-two billion, one hundred fifty-five million, one hundred twenty-three thousand, two hundred three".