110121020210021 has 4 divisors (see below), whose sum is σ = 110988114857472. Its totient is φ = 109253925562572.

The previous prime is 110121020209969. The next prime is 110121020210129. The reversal of 110121020210021 is 120012020121011.

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 a cyclic number.

It is not a de Polignac number, because 110121020210021 - 2⁴² = 105722973698917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110121020209978 and 110121020210005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110121020210821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433547323535 + ... + 433547323788.

It is an arithmetic number, because the mean of its divisors is an integer number (27747028714368).

Almost surely, 2^{110121020210021} is an apocalyptic number.

It is an amenable number.

110121020210021 is a deficient number, since it is larger than the sum of its proper divisors (867094647451).

110121020210021 is an equidigital number, since it uses as much as digits as its factorization.

110121020210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867094647450.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 110121020210021 its reverse (120012020121011), we get a palindrome (230133040331032).

The spelling of 110121020210021 in words is "one hundred ten trillion, one hundred twenty-one billion, twenty million, two hundred ten thousand, twenty-one".