11212222100201 has 2 divisors, whose sum is σ = 11212222100202. Its totient is φ = 11212222100200.

The previous prime is 11212222100171. The next prime is 11212222100243. The reversal of 11212222100201 is 10200122221211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11057945971801 + 154276128400 = 3325349^2 + 392780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11212222100201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11212222100201.

It is not a weakly prime, because it can be changed into another prime (11212222100501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606111050100 + 5606111050101.

It is an arithmetic number, because the mean of its divisors is an integer number (5606111050101).

Almost surely, 2^{11212222100201} is an apocalyptic number.

It is an amenable number.

11212222100201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212222100201 is an equidigital number, since it uses as much as digits as its factorization.

11212222100201 is an odious number, because the sum of its binary digits is odd.

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

Adding to 11212222100201 its reverse (10200122221211), we get a palindrome (21412344321412).

The spelling of 11212222100201 in words is "eleven trillion, two hundred twelve billion, two hundred twenty-two million, one hundred thousand, two hundred one".