22225351 has 4 divisors (see below), whose sum is σ = 22235104. Its totient is φ = 22215600.

The previous prime is 22225309. The next prime is 22225369. The reversal of 22225351 is 15352222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22225351 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 (22225451) 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, 571 + ... + 6691.

It is an arithmetic number, because the mean of its divisors is an integer number (5558776).

Almost surely, 2^22225351 is an apocalyptic number.

22225351 is a deficient number, since it is larger than the sum of its proper divisors (9753).

22225351 is an equidigital number, since it uses as much as digits as its factorization.

22225351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9752.

The product of its digits is 1200, while the sum is 22.

The square root of 22225351 is about 4714.3770532277. The cubic root of 22225351 is about 281.1574157150.

Adding to 22225351 its reverse (15352222), we get a palindrome (37577573).

The spelling of 22225351 in words is "twenty-two million, two hundred twenty-five thousand, three hundred fifty-one".