120001112112021 has 8 divisors (see below), whose sum is σ = 182858837504064. Its totient is φ = 68572064064000.

The previous prime is 120001112112001. The next prime is 120001112112053. The reversal of 120001112112021 is 120211211100021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120001112112021 - 2²⁵ = 120001078557589 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120001112112001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2857169335980 + ... + 2857169336021.

It is an arithmetic number, because the mean of its divisors is an integer number (22857354688008).

Almost surely, 2^{120001112112021} is an apocalyptic number.

It is an amenable number.

120001112112021 is a deficient number, since it is larger than the sum of its proper divisors (62857725392043).

120001112112021 is an equidigital number, since it uses as much as digits as its factorization.

120001112112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5714338672011.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 120001112112021 its reverse (120211211100021), we get a palindrome (240212323212042).

The spelling of 120001112112021 in words is "one hundred twenty trillion, one billion, one hundred twelve million, one hundred twelve thousand, twenty-one".