120221220101221 has 8 divisors (see below), whose sum is σ = 120585884023800. Its totient is φ = 119856866931648.

The previous prime is 120221220101209. The next prime is 120221220101243. The reversal of 120221220101221 is 122101022122021.

It can be written as a sum of positive squares in 4 ways, for example, as 48894986325025 + 71326233776196 = 6992495^2 + 8445486^2 .

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 120221220101221 - 2⁷ = 120221220101093 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 (120221220101821) 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, 76913326 + ... + 78460831.

It is an arithmetic number, because the mean of its divisors is an integer number (15073235502975).

Almost surely, 2^{120221220101221} is an apocalyptic number.

It is an amenable number.

120221220101221 is a deficient number, since it is larger than the sum of its proper divisors (364663922579).

120221220101221 is a wasteful number, since it uses less digits than its factorization.

120221220101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155376503.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 120221220101221 its reverse (122101022122021), we get a palindrome (242322242223242).

The spelling of 120221220101221 in words is "one hundred twenty trillion, two hundred twenty-one billion, two hundred twenty million, one hundred one thousand, two hundred twenty-one".