22120001111 has 16 divisors (see below), whose sum is σ = 24655646400. Its totient is φ = 19704238848.

The previous prime is 22120001093. The next prime is 22120001119. The reversal of 22120001111 is 11110002122.

It is a de Polignac number, because none of the positive numbers 2^k-22120001111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22120001092 and 22120001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120001119) 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 15 ways as a sum of consecutive naturals, for example, 773510 + ... + 801596.

It is an arithmetic number, because the mean of its divisors is an integer number (1540977900).

Almost surely, 2^22120001111 is an apocalyptic number.

22120001111 is a deficient number, since it is larger than the sum of its proper divisors (2535645289).

22120001111 is a wasteful number, since it uses less digits than its factorization.

22120001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30218.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 22120001111 its reverse (11110002122), we get a palindrome (33230003233).

The spelling of 22120001111 in words is "twenty-two billion, one hundred twenty million, one thousand, one hundred eleven".