22652011 has 4 divisors (see below), whose sum is σ = 22661712. Its totient is φ = 22642312.

The previous prime is 22651999. The next prime is 22652017. The reversal of 22652011 is 11025622.

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 22652011 - 2⁷ = 22651883 is a prime.

It is a super-2 number, since 2×22652011² = 1026227204688242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22652011.

It is not an unprimeable number, because it can be changed into a prime (22652017) 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 in 3 ways as a sum of consecutive naturals, for example, 1026 + ... + 6808.

It is an arithmetic number, because the mean of its divisors is an integer number (5665428).

Almost surely, 2^22652011 is an apocalyptic number.

22652011 is a deficient number, since it is larger than the sum of its proper divisors (9701).

22652011 is an equidigital number, since it uses as much as digits as its factorization.

22652011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9700.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 22652011 is about 4759.4128839595. The cubic root of 22652011 is about 282.9451503784.

Adding to 22652011 its reverse (11025622), we get a palindrome (33677633).

The spelling of 22652011 in words is "twenty-two million, six hundred fifty-two thousand, eleven".