23222011 has 4 divisors (see below), whose sum is σ = 24022800. Its totient is φ = 22421224.

The previous prime is 23221997. The next prime is 23222033. The reversal of 23222011 is 11022232.

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

It is a cyclic number.

It is not a de Polignac number, because 23222011 - 2¹³ = 23213819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23221982 and 23222000.

It is not an unprimeable number, because it can be changed into a prime (23222081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400351 + ... + 400408.

It is an arithmetic number, because the mean of its divisors is an integer number (6005700).

Almost surely, 2^23222011 is an apocalyptic number.

23222011 is a deficient number, since it is larger than the sum of its proper divisors (800789).

23222011 is an equidigital number, since it uses as much as digits as its factorization.

23222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800788.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 23222011 is about 4818.9221823972. The cubic root of 23222011 is about 285.2987981477.

Adding to 23222011 its reverse (11022232), we get a palindrome (34244243).

The spelling of 23222011 in words is "twenty-three million, two hundred twenty-two thousand, eleven".