11210121202117 has 2 divisors, whose sum is σ = 11210121202118. Its totient is φ = 11210121202116.

The previous prime is 11210121202079. The next prime is 11210121202123. The reversal of 11210121202117 is 71120212101211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5624111853441 + 5586009348676 = 2371521^2 + 2363474^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11210121202117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11210121202127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605060601058 + 5605060601059.

It is an arithmetic number, because the mean of its divisors is an integer number (5605060601059).

Almost surely, 2^{11210121202117} is an apocalyptic number.

It is an amenable number.

11210121202117 is a deficient number, since it is larger than the sum of its proper divisors (1).

11210121202117 is an equidigital number, since it uses as much as digits as its factorization.

11210121202117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 22.

Adding to 11210121202117 its reverse (71120212101211), we get a palindrome (82330333303328).

The spelling of 11210121202117 in words is "eleven trillion, two hundred ten billion, one hundred twenty-one million, two hundred two thousand, one hundred seventeen".