22201351 has 4 divisors (see below), whose sum is σ = 22212792. Its totient is φ = 22189912.

The previous prime is 22201349. The next prime is 22201381. The reversal of 22201351 is 15310222.

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 not a de Polignac number, because 22201351 - 2¹ = 22201349 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 (22201331) 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, 2005 + ... + 6958.

It is an arithmetic number, because the mean of its divisors is an integer number (5553198).

Almost surely, 2^22201351 is an apocalyptic number.

22201351 is a deficient number, since it is larger than the sum of its proper divisors (11441).

22201351 is an equidigital number, since it uses as much as digits as its factorization.

22201351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11440.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 22201351 is about 4711.8309604654. The cubic root of 22201351 is about 281.0561768445.

Adding to 22201351 its reverse (15310222), we get a palindrome (37511573).

The spelling of 22201351 in words is "twenty-two million, two hundred one thousand, three hundred fifty-one".