120020210221 has 2 divisors, whose sum is σ = 120020210222. Its totient is φ = 120020210220.

The previous prime is 120020210201. The next prime is 120020210243. The reversal of 120020210221 is 122012020021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105745934596 + 14274275625 = 325186^2 + 119475^2 .

It is a cyclic number.

It is not a de Polignac number, because 120020210221 - 2²¹ = 120018113069 is a prime.

It is a super-2 number, since 2×120020210221² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120020210201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010105110 + 60010105111.

It is an arithmetic number, because the mean of its divisors is an integer number (60010105111).

Almost surely, 2^120020210221 is an apocalyptic number.

It is an amenable number.

120020210221 is a deficient number, since it is larger than the sum of its proper divisors (1).

120020210221 is an equidigital number, since it uses as much as digits as its factorization.

120020210221 is an odious number, because the sum of its binary digits is odd.

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

Adding to 120020210221 its reverse (122012020021), we get a palindrome (242032230242).

The spelling of 120020210221 in words is "one hundred twenty billion, twenty million, two hundred ten thousand, two hundred twenty-one".