120015646221 has 8 divisors (see below), whose sum is σ = 168443012320. Its totient is φ = 75799355472.

The previous prime is 120015646193. The next prime is 120015646241. The reversal of 120015646221 is 122646510021.

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

It is not a de Polignac number, because 120015646221 - 2¹⁷ = 120015515149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120015646241) 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 7 ways as a sum of consecutive naturals, for example, 1052768770 + ... + 1052768883.

It is an arithmetic number, because the mean of its divisors is an integer number (21055376540).

Almost surely, 2^120015646221 is an apocalyptic number.

It is an amenable number.

120015646221 is a deficient number, since it is larger than the sum of its proper divisors (48427366099).

120015646221 is a wasteful number, since it uses less digits than its factorization.

120015646221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105537675.

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 120015646221 in words is "one hundred twenty billion, fifteen million, six hundred forty-six thousand, two hundred twenty-one".