120021105016115 has 4 divisors (see below), whose sum is σ = 144025326019344. Its totient is φ = 96016884012888.

The previous prime is 120021105016081. The next prime is 120021105016217. The reversal of 120021105016115 is 511610501120021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120021105016115 - 2⁶ = 120021105016051 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12002110501607 + ... + 12002110501616.

It is an arithmetic number, because the mean of its divisors is an integer number (36006331504836).

Almost surely, 2^{120021105016115} is an apocalyptic number.

120021105016115 is a deficient number, since it is larger than the sum of its proper divisors (24004221003229).

120021105016115 is an equidigital number, since it uses as much as digits as its factorization.

120021105016115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24004221003228.

The product of its (nonzero) digits is 600, while the sum is 26.

Adding to 120021105016115 its reverse (511610501120021), we get a palindrome (631631606136136).

The spelling of 120021105016115 in words is "one hundred twenty trillion, twenty-one billion, one hundred five million, sixteen thousand, one hundred fifteen".