22533011 has 2 divisors, whose sum is σ = 22533012. Its totient is φ = 22533010.

The previous prime is 22532987. The next prime is 22533013. The reversal of 22533011 is 11033522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22533011 - 2⁶ = 22532947 is a prime.

It is a super-2 number, since 2×22533011² = 1015473169452242, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 22533013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22533013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11266505 + 11266506.

It is an arithmetic number, because the mean of its divisors is an integer number (11266506).

Almost surely, 2^22533011 is an apocalyptic number.

22533011 is a deficient number, since it is larger than the sum of its proper divisors (1).

22533011 is an equidigital number, since it uses as much as digits as its factorization.

22533011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 22533011 is about 4746.8948798135. The cubic root of 22533011 is about 282.4488058223.

Adding to 22533011 its reverse (11033522), we get a palindrome (33566533).

The spelling of 22533011 in words is "twenty-two million, five hundred thirty-three thousand, eleven".