11211101888929 has 2 divisors, whose sum is σ = 11211101888930. Its totient is φ = 11211101888928.

The previous prime is 11211101888893. The next prime is 11211101888939. The reversal of 11211101888929 is 92988810111211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11093216099904 + 117885789025 = 3330648^2 + 343345^2 .

It is a cyclic number.

It is not a de Polignac number, because 11211101888929 - 2¹⁵ = 11211101856161 is a prime.

It is not a weakly prime, because it can be changed into another prime (11211101888939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605550944464 + 5605550944465.

It is an arithmetic number, because the mean of its divisors is an integer number (5605550944465).

Almost surely, 2^{11211101888929} is an apocalyptic number.

It is an amenable number.

11211101888929 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211101888929 is an equidigital number, since it uses as much as digits as its factorization.

11211101888929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 52.

The spelling of 11211101888929 in words is "eleven trillion, two hundred eleven billion, one hundred one million, eight hundred eighty-eight thousand, nine hundred twenty-nine".