110011201221689 has 2 divisors, whose sum is σ = 110011201221690. Its totient is φ = 110011201221688.

The previous prime is 110011201221661. The next prime is 110011201221703. The reversal of 110011201221689 is 986122102110011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55399618520464 + 54611582701225 = 7443092^2 + 7389965^2 .

It is a cyclic number.

It is not a de Polignac number, because 110011201221689 - 2²⁸ = 110010932786233 is a prime.

It is a super-2 number, since 2×110011201221689² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (110011201221659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55005600610844 + 55005600610845.

It is an arithmetic number, because the mean of its divisors is an integer number (55005600610845).

Almost surely, 2^{110011201221689} is an apocalyptic number.

It is an amenable number.

110011201221689 is a deficient number, since it is larger than the sum of its proper divisors (1).

110011201221689 is an equidigital number, since it uses as much as digits as its factorization.

110011201221689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 35.

The spelling of 110011201221689 in words is "one hundred ten trillion, eleven billion, two hundred one million, two hundred twenty-one thousand, six hundred eighty-nine".