120110122120021 has 4 divisors (see below), whose sum is σ = 131029224130944. Its totient is φ = 109191020109100.

The previous prime is 120110122119971. The next prime is 120110122120031. The reversal of 120110122120021 is 120021221011021.

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 120110122120021 - 2³⁹ = 119560366306133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120110122119977 and 120110122120004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120110122120031) 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, 5459551005445 + ... + 5459551005466.

It is an arithmetic number, because the mean of its divisors is an integer number (32757306032736).

Almost surely, 2^{120110122120021} is an apocalyptic number.

120110122120021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120110122120021 is a deficient number, since it is larger than the sum of its proper divisors (10919102010923).

120110122120021 is a wasteful number, since it uses less digits than its factorization.

120110122120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10919102010922.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 120110122120021 its reverse (120021221011021), we get a palindrome (240131343131042).

The spelling of 120110122120021 in words is "one hundred twenty trillion, one hundred ten billion, one hundred twenty-two million, one hundred twenty thousand, twenty-one".