12101122 has 16 divisors (see below), whose sum is σ = 19857312. Its totient is φ = 5485120.

The previous prime is 12101099. The next prime is 12101123. The reversal of 12101122 is 22110121.

It is a junction number, because it is equal to n+sod(n) for n = 12101099 and 12101108.

It is not an unprimeable number, because it can be changed into a prime (12101123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11898 + ... + 12874.

It is an arithmetic number, because the mean of its divisors is an integer number (1241082).

Almost surely, 2^12101122 is an apocalyptic number.

12101122 is a deficient number, since it is larger than the sum of its proper divisors (7756190).

12101122 is a wasteful number, since it uses less digits than its factorization.

12101122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 12101122 is about 3478.6666986074. Note that the first 4 decimals coincide. The cubic root of 12101122 is about 229.5841382649.

Adding to 12101122 its reverse (22110121), we get a palindrome (34211243).

It can be divided in two parts, 1210 and 1122, that added together give a palindrome (2332).

The spelling of 12101122 in words is "twelve million, one hundred one thousand, one hundred twenty-two".