110121200100019 has 2 divisors, whose sum is σ = 110121200100020. Its totient is φ = 110121200100018.

The previous prime is 110121200100013. The next prime is 110121200100089. The reversal of 110121200100019 is 910001002121011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 110121200100019 - 2²⁵ = 110121166545587 is a prime.

It is a super-2 number, since 2×110121200100019² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 110121200099969 and 110121200100005.

It is not a weakly prime, because it can be changed into another prime (110121200100013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55060600050009 + 55060600050010.

It is an arithmetic number, because the mean of its divisors is an integer number (55060600050010).

Almost surely, 2^{110121200100019} is an apocalyptic number.

110121200100019 is a deficient number, since it is larger than the sum of its proper divisors (1).

110121200100019 is an equidigital number, since it uses as much as digits as its factorization.

110121200100019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 110121200100019 in words is "one hundred ten trillion, one hundred twenty-one billion, two hundred million, one hundred thousand, nineteen".