22451100361 has 2 divisors, whose sum is σ = 22451100362. Its totient is φ = 22451100360.

The previous prime is 22451100299. The next prime is 22451100367. The reversal of 22451100361 is 16300115422.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13045979961 + 9405120400 = 114219^2 + 96980^2 .

It is a cyclic number.

It is not a de Polignac number, because 22451100361 - 2³¹ = 20303616713 is a prime.

It is not a weakly prime, because it can be changed into another prime (22451100367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11225550180 + 11225550181.

It is an arithmetic number, because the mean of its divisors is an integer number (11225550181).

Almost surely, 2^22451100361 is an apocalyptic number.

It is an amenable number.

22451100361 is a deficient number, since it is larger than the sum of its proper divisors (1).

22451100361 is an equidigital number, since it uses as much as digits as its factorization.

22451100361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 22451100361 its reverse (16300115422), we get a palindrome (38751215783).

The spelling of 22451100361 in words is "twenty-two billion, four hundred fifty-one million, one hundred thousand, three hundred sixty-one".