22881101 has 2 divisors, whose sum is σ = 22881102. Its totient is φ = 22881100.

The previous prime is 22881097. The next prime is 22881109. The reversal of 22881101 is 10118822.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18361225 + 4519876 = 4285^2 + 2126^2 .

It is a cyclic number.

It is not a de Polignac number, because 22881101 - 2² = 22881097 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22881109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11440550 + 11440551.

It is an arithmetic number, because the mean of its divisors is an integer number (11440551).

Almost surely, 2^22881101 is an apocalyptic number.

It is an amenable number.

22881101 is a deficient number, since it is larger than the sum of its proper divisors (1).

22881101 is an equidigital number, since it uses as much as digits as its factorization.

22881101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 22881101 is about 4783.4193836627. The cubic root of 22881101 is about 283.8958033749.

Adding to 22881101 its reverse (10118822), we get a palindrome (32999923).

The spelling of 22881101 in words is "twenty-two million, eight hundred eighty-one thousand, one hundred one".