22112420111 has 4 divisors (see below), whose sum is σ = 22223538000. Its totient is φ = 22001302224.

The previous prime is 22112420059. The next prime is 22112420137. The reversal of 22112420111 is 11102421122.

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-22112420111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22112420111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112420711) 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, 55558646 + ... + 55559043.

It is an arithmetic number, because the mean of its divisors is an integer number (5555884500).

Almost surely, 2^22112420111 is an apocalyptic number.

22112420111 is a deficient number, since it is larger than the sum of its proper divisors (111117889).

22112420111 is a wasteful number, since it uses less digits than its factorization.

22112420111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111117888.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22112420111 its reverse (11102421122), we get a palindrome (33214841233).

The spelling of 22112420111 in words is "twenty-two billion, one hundred twelve million, four hundred twenty thousand, one hundred eleven".