22120022011 has 4 divisors (see below), whose sum is σ = 22279159000. Its totient is φ = 21960885024.

The previous prime is 22120021969. The next prime is 22120022033. The reversal of 22120022011 is 11022002122.

It is a happy number.

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 22120022011 - 2²³ = 22111633403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22120021982 and 22120022000.

It is not an unprimeable number, because it can be changed into a prime (22120022051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79568286 + ... + 79568563.

It is an arithmetic number, because the mean of its divisors is an integer number (5569789750).

Almost surely, 2^22120022011 is an apocalyptic number.

22120022011 is a deficient number, since it is larger than the sum of its proper divisors (159136989).

22120022011 is a wasteful number, since it uses less digits than its factorization.

22120022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159136988.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22120022011 its reverse (11022002122), we get a palindrome (33142024133).

The spelling of 22120022011 in words is "twenty-two billion, one hundred twenty million, twenty-two thousand, eleven".