20003222011 has 4 divisors (see below), whose sum is σ = 20042990352. Its totient is φ = 19963453672.

The previous prime is 20003221963. The next prime is 20003222027. The reversal of 20003222011 is 11022230002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20003222011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20003221982 and 20003222000.

It is not an unprimeable number, because it can be changed into a prime (20003222081) 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, 19883416 + ... + 19884421.

It is an arithmetic number, because the mean of its divisors is an integer number (5010747588).

Almost surely, 2^20003222011 is an apocalyptic number.

20003222011 is a deficient number, since it is larger than the sum of its proper divisors (39768341).

20003222011 is an equidigital number, since it uses as much as digits as its factorization.

20003222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39768340.

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

Adding to 20003222011 its reverse (11022230002), we get a palindrome (31025452013).

The spelling of 20003222011 in words is "twenty billion, three million, two hundred twenty-two thousand, eleven".