22002122111 has 4 divisors (see below), whose sum is σ = 22020025800. Its totient is φ = 21984218424.

The previous prime is 22002122083. The next prime is 22002122167. The reversal of 22002122111 is 11122120022.

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-22002122111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002122171) 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, 8950001 + ... + 8952458.

It is an arithmetic number, because the mean of its divisors is an integer number (5505006450).

Almost surely, 2^22002122111 is an apocalyptic number.

22002122111 is a deficient number, since it is larger than the sum of its proper divisors (17903689).

22002122111 is a wasteful number, since it uses less digits than its factorization.

22002122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17903688.

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

Adding to 22002122111 its reverse (11122120022), we get a palindrome (33124242133).

The spelling of 22002122111 in words is "twenty-two billion, two million, one hundred twenty-two thousand, one hundred eleven".