120020121212221 has 8 divisors (see below), whose sum is σ = 120937093646688. Its totient is φ = 119103160722000.

The previous prime is 120020121212213. The next prime is 120020121212237. The reversal of 120020121212221 is 122212121020021.

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 120020121212221 - 2³ = 120020121212213 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 (120020121212291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17734591 + ... + 23549011.

It is an arithmetic number, because the mean of its divisors is an integer number (15117136705836).

Almost surely, 2^{120020121212221} is an apocalyptic number.

It is an amenable number.

120020121212221 is a deficient number, since it is larger than the sum of its proper divisors (916972434467).

120020121212221 is a wasteful number, since it uses less digits than its factorization.

120020121212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5972123.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 120020121212221 its reverse (122212121020021), we get a palindrome (242232242232242).

The spelling of 120020121212221 in words is "one hundred twenty trillion, twenty billion, one hundred twenty-one million, two hundred twelve thousand, two hundred twenty-one".