120020120221 has 16 divisors (see below), whose sum is σ = 123809647104. Its totient is φ = 116259888384.

The previous prime is 120020120203. The next prime is 120020120243. The reversal of 120020120221 is 122021020021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120020120221 - 2¹⁹ = 120019595933 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 (120020120261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22252101 + ... + 22257493.

It is an arithmetic number, because the mean of its divisors is an integer number (7738102944).

Almost surely, 2^120020120221 is an apocalyptic number.

It is an amenable number.

120020120221 is a deficient number, since it is larger than the sum of its proper divisors (3789526883).

120020120221 is a wasteful number, since it uses less digits than its factorization.

120020120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7980.

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

Adding to 120020120221 its reverse (122021020021), we get a palindrome (242041140242).

The spelling of 120020120221 in words is "one hundred twenty billion, twenty million, one hundred twenty thousand, two hundred twenty-one".