120020201221 has 4 divisors (see below), whose sum is σ = 122947523244. Its totient is φ = 117092879200.

The previous prime is 120020201179. The next prime is 120020201227. The reversal of 120020201221 is 122102020021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122102020021 = 128347 ⋅951343.

It can be written as a sum of positive squares in 2 ways, for example, as 22527008100 + 97493193121 = 150090^2 + 312239^2 .

It is a cyclic number.

It is not a de Polignac number, because 120020201221 - 2²⁵ = 119986646789 is a prime.

It is a super-2 number, since 2×120020201221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020201227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1463660950 + ... + 1463661031.

It is an arithmetic number, because the mean of its divisors is an integer number (30736880811).

Almost surely, 2^120020201221 is an apocalyptic number.

It is an amenable number.

120020201221 is a deficient number, since it is larger than the sum of its proper divisors (2927322023).

120020201221 is an equidigital number, since it uses as much as digits as its factorization.

120020201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2927322022.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 120020201221 its reverse (122102020021), we get a palindrome (242122221242).

The spelling of 120020201221 in words is "one hundred twenty billion, twenty million, two hundred one thousand, two hundred twenty-one".