22100122111 has 8 divisors (see below), whose sum is σ = 23401922544. Its totient is φ = 20798520960.

The previous prime is 22100122103. The next prime is 22100122139. The reversal of 22100122111 is 11122100122.

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 22100122111 - 2³ = 22100122103 is a prime.

It is a super-2 number, since 2×22100122111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22100122091 and 22100122100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100122181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220441 + ... + 304621.

It is an arithmetic number, because the mean of its divisors is an integer number (2925240318).

Almost surely, 2^22100122111 is an apocalyptic number.

22100122111 is a deficient number, since it is larger than the sum of its proper divisors (1301800433).

22100122111 is a wasteful number, since it uses less digits than its factorization.

22100122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99641.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22100122111 its reverse (11122100122), we get a palindrome (33222222233).

It can be divided in two parts, 22100122 and 111, that multiplied together give a palindrome (2453113542).

The spelling of 22100122111 in words is "twenty-two billion, one hundred million, one hundred twenty-two thousand, one hundred eleven".