120671221601 has 16 divisors (see below), whose sum is σ = 146032730496. Its totient is φ = 97341271296.

The previous prime is 120671221577. The next prime is 120671221631. The reversal of 120671221601 is 106122176021.

It is a cyclic number.

It is not a de Polignac number, because 120671221601 - 2²⁶ = 120604112737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120671221631) 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, 2238770 + ... + 2292036.

It is an arithmetic number, because the mean of its divisors is an integer number (9127045656).

Almost surely, 2^120671221601 is an apocalyptic number.

It is an amenable number.

120671221601 is a deficient number, since it is larger than the sum of its proper divisors (25361508895).

120671221601 is a wasteful number, since it uses less digits than its factorization.

120671221601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72328.

The product of its (nonzero) digits is 2016, while the sum is 29.

Adding to 120671221601 its reverse (106122176021), we get a palindrome (226793397622).

The spelling of 120671221601 in words is "one hundred twenty billion, six hundred seventy-one million, two hundred twenty-one thousand, six hundred one".