120020210000221 has 2 divisors, whose sum is σ = 120020210000222. Its totient is φ = 120020210000220.

The previous prime is 120020210000219. The next prime is 120020210000227. The reversal of 120020210000221 is 122000012020021.

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., 90337991436900 + 29682218563321 = 9504630^2 + 5448139^2 .

It is a cyclic number.

It is not a de Polignac number, because 120020210000221 - 2¹ = 120020210000219 is a prime.

Together with 120020210000219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120020210000227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010105000110 + 60010105000111.

It is an arithmetic number, because the mean of its divisors is an integer number (60010105000111).

Almost surely, 2^{120020210000221} is an apocalyptic number.

It is an amenable number.

120020210000221 is a deficient number, since it is larger than the sum of its proper divisors (1).

120020210000221 is an equidigital number, since it uses as much as digits as its factorization.

120020210000221 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 120020210000221 its reverse (122000012020021), we get a palindrome (242020222020242).

The spelling of 120020210000221 in words is "one hundred twenty trillion, twenty billion, two hundred ten million, two hundred twenty-one", and thus it is an aban number.