120020021112221 has 8 divisors (see below), whose sum is σ = 120145813459584. Its totient is φ = 119894232230640.

The previous prime is 120020021112209. The next prime is 120020021112263. The reversal of 120020021112221 is 122211120020021.

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 120020021112221 - 2¹⁴ = 120020021095837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120020021112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020021162221) 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, 71602691 + ... + 73259711.

It is an arithmetic number, because the mean of its divisors is an integer number (15018226682448).

Almost surely, 2^{120020021112221} is an apocalyptic number.

It is an amenable number.

120020021112221 is a deficient number, since it is larger than the sum of its proper divisors (125792347363).

120020021112221 is an equidigital number, since it uses as much as digits as its factorization.

120020021112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732891.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120020021112221 its reverse (122211120020021), we get a palindrome (242231141132242).

The spelling of 120020021112221 in words is "one hundred twenty trillion, twenty billion, twenty-one million, one hundred twelve thousand, two hundred twenty-one".