12212220120101 has 4 divisors (see below), whose sum is σ = 12212471330112. Its totient is φ = 12211968910092.

The previous prime is 12212220120059. The next prime is 12212220120109. The reversal of 12212220120101 is 10102102221221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12212220120101 - 2²⁶ = 12212153011237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12212220120101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212220120109) 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, 125532071 + ... + 125629316.

It is an arithmetic number, because the mean of its divisors is an integer number (3053117832528).

Almost surely, 2^{12212220120101} is an apocalyptic number.

It is an amenable number.

12212220120101 is a deficient number, since it is larger than the sum of its proper divisors (251210011).

12212220120101 is an equidigital number, since it uses as much as digits as its factorization.

12212220120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251210010.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12212220120101 its reverse (10102102221221), we get a palindrome (22314322341322).

The spelling of 12212220120101 in words is "twelve trillion, two hundred twelve billion, two hundred twenty million, one hundred twenty thousand, one hundred one".