22120002011 has 4 divisors (see below), whose sum is σ = 22231158000. Its totient is φ = 22008846024.

The previous prime is 22120002007. The next prime is 22120002017. The reversal of 22120002011 is 11020002122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11020002122 = 2 ⋅5510001061.

It is a cyclic number.

It is not a de Polignac number, because 22120002011 - 2² = 22120002007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22120001983 and 22120002001.

It is not an unprimeable number, because it can be changed into a prime (22120002017) 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, 55577696 + ... + 55578093.

It is an arithmetic number, because the mean of its divisors is an integer number (5557789500).

Almost surely, 2^22120002011 is an apocalyptic number.

22120002011 is a deficient number, since it is larger than the sum of its proper divisors (111155989).

22120002011 is a wasteful number, since it uses less digits than its factorization.

22120002011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111155988.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22120002011 its reverse (11020002122), we get a palindrome (33140004133).

The spelling of 22120002011 in words is "twenty-two billion, one hundred twenty million, two thousand, eleven".