22002112211 has 4 divisors (see below), whose sum is σ = 22123671024. Its totient is φ = 21880553400.

The previous prime is 22002112207. The next prime is 22002112217. The reversal of 22002112211 is 11221120022.

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 22002112211 - 2² = 22002112207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22002112217) 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, 60779135 + ... + 60779496.

It is an arithmetic number, because the mean of its divisors is an integer number (5530917756).

Almost surely, 2^22002112211 is an apocalyptic number.

22002112211 is a deficient number, since it is larger than the sum of its proper divisors (121558813).

22002112211 is a wasteful number, since it uses less digits than its factorization.

22002112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121558812.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22002112211 its reverse (11221120022), we get a palindrome (33223232233).

It can be divided in two parts, 220021 and 12211, that added together give a palindrome (232232).

The spelling of 22002112211 in words is "twenty-two billion, two million, one hundred twelve thousand, two hundred eleven".