12212201121101 has 2 divisors, whose sum is σ = 12212201121102. Its totient is φ = 12212201121100.

The previous prime is 12212201121053. The next prime is 12212201121103. The reversal of 12212201121101 is 10112110221221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11605127956900 + 607073164201 = 3406630^2 + 779149^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12212201121101 is a prime.

Together with 12212201121103, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12212201121101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12212201121103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106100560550 + 6106100560551.

It is an arithmetic number, because the mean of its divisors is an integer number (6106100560551).

Almost surely, 2^{12212201121101} is an apocalyptic number.

It is an amenable number.

12212201121101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212201121101 is an equidigital number, since it uses as much as digits as its factorization.

12212201121101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12212201121101 its reverse (10112110221221), we get a palindrome (22324311342322).

The spelling of 12212201121101 in words is "twelve trillion, two hundred twelve billion, two hundred one million, one hundred twenty-one thousand, one hundred one".