22144223351 has 4 divisors (see below), whose sum is σ = 22742715912. Its totient is φ = 21545730792.

The previous prime is 22144223329. The next prime is 22144223357. The reversal of 22144223351 is 15332244122.

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 22144223351 - 2²² = 22140029047 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 (22144223357) 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, 299246225 + ... + 299246298.

It is an arithmetic number, because the mean of its divisors is an integer number (5685678978).

Almost surely, 2^22144223351 is an apocalyptic number.

22144223351 is a deficient number, since it is larger than the sum of its proper divisors (598492561).

22144223351 is an equidigital number, since it uses as much as digits as its factorization.

22144223351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598492560.

The product of its digits is 11520, while the sum is 29.

Adding to 22144223351 its reverse (15332244122), we get a palindrome (37476467473).

The spelling of 22144223351 in words is "twenty-two billion, one hundred forty-four million, two hundred twenty-three thousand, three hundred fifty-one".