12100112022222 has 72 divisors (see below), whose sum is σ = 30498044234112. Its totient is φ = 3457081555200.

The previous prime is 12100112022217. The next prime is 12100112022253. The reversal of 12100112022222 is 22222021100121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12100112022195 and 12100112022204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 36668947 + ... + 36997457.

It is an arithmetic number, because the mean of its divisors is an integer number (423583947696).

Almost surely, 2^{12100112022222} is an apocalyptic number.

12100112022222 is an abundant number, since it is smaller than the sum of its proper divisors (18397932211890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12100112022222 is a wasteful number, since it uses less digits than its factorization.

12100112022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370294 (or 370284 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12100112022222 its reverse (22222021100121), we get a palindrome (34322133122343).

The spelling of 12100112022222 in words is "twelve trillion, one hundred billion, one hundred twelve million, twenty-two thousand, two hundred twenty-two".