110001120021021 has 4 divisors (see below), whose sum is σ = 146668160028032. Its totient is φ = 73334080014012.

The previous prime is 110001120020999. The next prime is 110001120021029. The reversal of 110001120021021 is 120120021100011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 110001120021021 - 2¹⁹ = 110001119496733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110001120020988 and 110001120021006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110001120021029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18333520003501 + ... + 18333520003506.

It is an arithmetic number, because the mean of its divisors is an integer number (36667040007008).

Almost surely, 2^{110001120021021} is an apocalyptic number.

It is an amenable number.

110001120021021 is a deficient number, since it is larger than the sum of its proper divisors (36667040007011).

110001120021021 is an equidigital number, since it uses as much as digits as its factorization.

110001120021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36667040007010.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 110001120021021 its reverse (120120021100011), we get a palindrome (230121141121032).

The spelling of 110001120021021 in words is "one hundred ten trillion, one billion, one hundred twenty million, twenty-one thousand, twenty-one".