120201100121221 has 8 divisors (see below), whose sum is σ = 137402222051264. Its totient is φ = 103007362240800.

The previous prime is 120201100121213. The next prime is 120201100121239. The reversal of 120201100121221 is 122121001102021.

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

It is a cyclic number.

It is not a de Polignac number, because 120201100121221 - 2³ = 120201100121213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120201100121195 and 120201100121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120201100121281) 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, 1845977520 + ... + 1846042633.

It is an arithmetic number, because the mean of its divisors is an integer number (17175277756408).

Almost surely, 2^{120201100121221} is an apocalyptic number.

It is an amenable number.

120201100121221 is a deficient number, since it is larger than the sum of its proper divisors (17201121930043).

120201100121221 is an equidigital number, since it uses as much as digits as its factorization.

120201100121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3692024811.

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

Adding to 120201100121221 its reverse (122121001102021), we get a palindrome (242322101223242).

The spelling of 120201100121221 in words is "one hundred twenty trillion, two hundred one billion, one hundred million, one hundred twenty-one thousand, two hundred twenty-one".