22120000211 has 4 divisors (see below), whose sum is σ = 23421176712. Its totient is φ = 20818823712.

The previous prime is 22120000141. The next prime is 22120000277. The reversal of 22120000211 is 11200002122.

It is a happy number.

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-22120000211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22120000192 and 22120000201.

It is not an unprimeable number, because it can be changed into a prime (22120000291) 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, 650588225 + ... + 650588258.

It is an arithmetic number, because the mean of its divisors is an integer number (5855294178).

Almost surely, 2^22120000211 is an apocalyptic number.

22120000211 is a deficient number, since it is larger than the sum of its proper divisors (1301176501).

22120000211 is a wasteful number, since it uses less digits than its factorization.

22120000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301176500.

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

Adding to 22120000211 its reverse (11200002122), we get a palindrome (33320002333).

The spelling of 22120000211 in words is "twenty-two billion, one hundred twenty million, two hundred eleven", and thus it is an aban number.