11208687114221 has 2 divisors, whose sum is σ = 11208687114222. Its totient is φ = 11208687114220.

The previous prime is 11208687114217. The next prime is 11208687114259. The reversal of 11208687114221 is 12241178680211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9976842400996 + 1231844713225 = 3158614^2 + 1109885^2 .

It is a cyclic number.

It is not a de Polignac number, because 11208687114221 - 2² = 11208687114217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11208687114721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5604343557110 + 5604343557111.

It is an arithmetic number, because the mean of its divisors is an integer number (5604343557111).

Almost surely, 2^{11208687114221} is an apocalyptic number.

It is an amenable number.

11208687114221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11208687114221 is an equidigital number, since it uses as much as digits as its factorization.

11208687114221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86016, while the sum is 44.

The spelling of 11208687114221 in words is "eleven trillion, two hundred eight billion, six hundred eighty-seven million, one hundred fourteen thousand, two hundred twenty-one".