12122200111 has 12 divisors (see below), whose sum is σ = 14174409792. Its totient is φ = 10336612608.

The previous prime is 12122200087. The next prime is 12122200141. The reversal of 12122200111 is 11100222121.

It is not a de Polignac number, because 12122200111 - 2⁷ = 12122199983 is a prime.

It is a super-2 number, since 2×12122200111² (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 = 12122200091 and 12122200100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122200141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 631455 + ... + 650368.

It is an arithmetic number, because the mean of its divisors is an integer number (1181200816).

Almost surely, 2^12122200111 is an apocalyptic number.

12122200111 is a deficient number, since it is larger than the sum of its proper divisors (2052209681).

12122200111 is a wasteful number, since it uses less digits than its factorization.

12122200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282030 (or 1282023 counting only the distinct ones).

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

Adding to 12122200111 its reverse (11100222121), we get a palindrome (23222422232).

The spelling of 12122200111 in words is "twelve billion, one hundred twenty-two million, two hundred thousand, one hundred eleven".