11011021201099 has 2 divisors, whose sum is σ = 11011021201100. Its totient is φ = 11011021201098.

The previous prime is 11011021201091. The next prime is 11011021201181. The reversal of 11011021201099 is 99010212011011.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11011021201099 - 2³ = 11011021201091 is a prime.

It is not a weakly prime, because it can be changed into another prime (11011021201091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505510600549 + 5505510600550.

It is an arithmetic number, because the mean of its divisors is an integer number (5505510600550).

Almost surely, 2^{11011021201099} is an apocalyptic number.

11011021201099 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011021201099 is an equidigital number, since it uses as much as digits as its factorization.

11011021201099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 28.

The spelling of 11011021201099 in words is "eleven trillion, eleven billion, twenty-one million, two hundred one thousand, ninety-nine".