22011220111 has 8 divisors (see below), whose sum is σ = 23346576000. Its totient is φ = 20693551320.

The previous prime is 22011220103. The next prime is 22011220141. The reversal of 22011220111 is 11102211022.

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

It is not a de Polignac number, because 22011220111 - 2³ = 22011220103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22011220091 and 22011220100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011220141) 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, 4419211 + ... + 4424188.

It is an arithmetic number, because the mean of its divisors is an integer number (2918322000).

Almost surely, 2^22011220111 is an apocalyptic number.

22011220111 is a deficient number, since it is larger than the sum of its proper divisors (1335355889).

22011220111 is a wasteful number, since it uses less digits than its factorization.

22011220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8843549.

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

Adding to 22011220111 its reverse (11102211022), we get a palindrome (33113431133).

The spelling of 22011220111 in words is "twenty-two billion, eleven million, two hundred twenty thousand, one hundred eleven".