120110121021 has 16 divisors (see below), whose sum is σ = 174720962880. Its totient is φ = 72787624320.

The previous prime is 120110120989. The next prime is 120110121067. The reversal of 120110121021 is 120121011021.

It is not a de Polignac number, because 120110121021 - 2⁵ = 120110120989 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120110120988 and 120110121006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120110121091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236695 + ... + 544283.

It is an arithmetic number, because the mean of its divisors is an integer number (10920060180).

Almost surely, 2^120110121021 is an apocalyptic number.

120110121021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120110121021 is a deficient number, since it is larger than the sum of its proper divisors (54610841859).

120110121021 is a wasteful number, since it uses less digits than its factorization.

120110121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319436.

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

Adding to 120110121021 its reverse (120121011021), we get a palindrome (240231132042).

Subtracting 120110121021 from its reverse (120121011021), we obtain a square (10890000 = 3300²).

The spelling of 120110121021 in words is "one hundred twenty billion, one hundred ten million, one hundred twenty-one thousand, twenty-one".