22971011 has 4 divisors (see below), whose sum is σ = 26252592. Its totient is φ = 19689432.

The previous prime is 22970999. The next prime is 22971037. The reversal of 22971011 is 11017922.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22971011 - 2¹⁰ = 22969987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22971211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1640780 + ... + 1640793.

It is an arithmetic number, because the mean of its divisors is an integer number (6563148).

Almost surely, 2^22971011 is an apocalyptic number.

22971011 is a deficient number, since it is larger than the sum of its proper divisors (3281581).

22971011 is an equidigital number, since it uses as much as digits as its factorization.

22971011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3281580.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 22971011 is about 4792.8082582135. The cubic root of 22971011 is about 284.2671682459.

Adding to 22971011 its reverse (11017922), we get a palindrome (33988933).

The spelling of 22971011 in words is "twenty-two million, nine hundred seventy-one thousand, eleven".