20433222011 has 4 divisors (see below), whose sum is σ = 21321622992. Its totient is φ = 19544821032.

The previous prime is 20433221999. The next prime is 20433222031. The reversal of 20433222011 is 11022233402.

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 20433222011 - 2¹⁴ = 20433205627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20433222031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444200456 + ... + 444200501.

It is an arithmetic number, because the mean of its divisors is an integer number (5330405748).

Almost surely, 2^20433222011 is an apocalyptic number.

20433222011 is a deficient number, since it is larger than the sum of its proper divisors (888400981).

20433222011 is an equidigital number, since it uses as much as digits as its factorization.

20433222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888400980.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20433222011 its reverse (11022233402), we get a palindrome (31455455413).

The spelling of 20433222011 in words is "twenty billion, four hundred thirty-three million, two hundred twenty-two thousand, eleven".