22021112111 has 8 divisors (see below), whose sum is σ = 23059754880. Its totient is φ = 20989236312.

The previous prime is 22021112051. The next prime is 22021112117. The reversal of 22021112111 is 11121112022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22021112111 - 2¹⁰ = 22021111087 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 (22021112117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1685081 + ... + 1698098.

It is an arithmetic number, because the mean of its divisors is an integer number (2882469360).

Almost surely, 2^22021112111 is an apocalyptic number.

22021112111 is a deficient number, since it is larger than the sum of its proper divisors (1038642769).

22021112111 is a wasteful number, since it uses less digits than its factorization.

22021112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3383485.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22021112111 its reverse (11121112022), we get a palindrome (33142224133).

The spelling of 22021112111 in words is "twenty-two billion, twenty-one million, one hundred twelve thousand, one hundred eleven".