12212120101109 has 12 divisors (see below), whose sum is σ = 12338612298948. Its totient is φ = 12086911430400.

The previous prime is 12212120101091. The next prime is 12212120101117. The reversal of 12212120101109 is 90110102121221.

It is a happy number.

12212120101109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 668638196209 + 11543481904900 = 817703^2 + 3397570^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12212120101109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212120191109) 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, 28688147 + ... + 29110719.

It is an arithmetic number, because the mean of its divisors is an integer number (1028217691579).

Almost surely, 2^{12212120101109} is an apocalyptic number.

It is an amenable number.

12212120101109 is a deficient number, since it is larger than the sum of its proper divisors (126492197839).

12212120101109 is an equidigital number, since it uses as much as digits as its factorization.

12212120101109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425608 (or 425507 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 12212120101109 in words is "twelve trillion, two hundred twelve billion, one hundred twenty million, one hundred one thousand, one hundred nine".