22163223351 has 4 divisors (see below), whose sum is σ = 29550964472. Its totient is φ = 14775482232.

The previous prime is 22163223347. The next prime is 22163223353. The reversal of 22163223351 is 15332236122.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22163223351 - 2² = 22163223347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22163223353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3693870556 + ... + 3693870561.

It is an arithmetic number, because the mean of its divisors is an integer number (7387741118).

Almost surely, 2^22163223351 is an apocalyptic number.

22163223351 is a deficient number, since it is larger than the sum of its proper divisors (7387741121).

22163223351 is an equidigital number, since it uses as much as digits as its factorization.

22163223351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7387741120.

The product of its digits is 12960, while the sum is 30.

Adding to 22163223351 its reverse (15332236122), we get a palindrome (37495459473).

The spelling of 22163223351 in words is "twenty-two billion, one hundred sixty-three million, two hundred twenty-three thousand, three hundred fifty-one".