12221102111201 has 2 divisors, whose sum is σ = 12221102111202. Its totient is φ = 12221102111200.

The previous prime is 12221102111171. The next prime is 12221102111233. The reversal of 12221102111201 is 10211120112221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8568359334976 + 3652742776225 = 2927176^2 + 1911215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12221102111201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12221102111201.

It is not a weakly prime, because it can be changed into another prime (12221302111201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110551055600 + 6110551055601.

It is an arithmetic number, because the mean of its divisors is an integer number (6110551055601).

Almost surely, 2^{12221102111201} is an apocalyptic number.

It is an amenable number.

12221102111201 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221102111201 is an equidigital number, since it uses as much as digits as its factorization.

12221102111201 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 12221102111201 its reverse (10211120112221), we get a palindrome (22432222223422).

The spelling of 12221102111201 in words is "twelve trillion, two hundred twenty-one billion, one hundred two million, one hundred eleven thousand, two hundred one".