12100220022212 has 12 divisors (see below), whose sum is σ = 24200440044480. Its totient is φ = 5185808580936.

The previous prime is 12100220022211. The next prime is 12100220022269. The reversal of 12100220022212 is 21222002200121.

It is a happy number.

12100220022212 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12100220022211) 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 3 ways as a sum of consecutive naturals, for example, 216075357512 + ... + 216075357567.

It is an arithmetic number, because the mean of its divisors is an integer number (2016703337040).

Almost surely, 2^{12100220022212} is an apocalyptic number.

It is an amenable number.

12100220022212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12100220022212 is a wasteful number, since it uses less digits than its factorization.

12100220022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432150715090 (or 432150715088 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12100220022212 its reverse (21222002200121), we get a palindrome (33322222222333).

The spelling of 12100220022212 in words is "twelve trillion, one hundred billion, two hundred twenty million, twenty-two thousand, two hundred twelve".