120221210221 has 8 divisors (see below), whose sum is σ = 137537175744. Its totient is φ = 102940621440.

The previous prime is 120221210191. The next prime is 120221210233. The reversal of 120221210221 is 122012122021.

It is a happy number.

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 120221210221 - 2⁷ = 120221210093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120221210195 and 120221210204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221210821) 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, 8836900 + ... + 8850493.

It is an arithmetic number, because the mean of its divisors is an integer number (17192146968).

Almost surely, 2^120221210221 is an apocalyptic number.

It is an amenable number.

120221210221 is a deficient number, since it is larger than the sum of its proper divisors (17315965523).

120221210221 is an equidigital number, since it uses as much as digits as its factorization.

120221210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17688371.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 120221210221 its reverse (122012122021), we get a palindrome (242233332242).

The spelling of 120221210221 in words is "one hundred twenty billion, two hundred twenty-one million, two hundred ten thousand, two hundred twenty-one".