120310100221 has 4 divisors (see below), whose sum is σ = 120694477852. Its totient is φ = 119925722592.

The previous prime is 120310100191. The next prime is 120310100233. The reversal of 120310100221 is 122001013021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27398525625 + 92911574596 = 165525^2 + 304814^2 .

It is a cyclic number.

It is not a de Polignac number, because 120310100221 - 2¹¹ = 120310098173 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 (120310104221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192188346 + ... + 192188971.

It is an arithmetic number, because the mean of its divisors is an integer number (30173619463).

Almost surely, 2^120310100221 is an apocalyptic number.

It is an amenable number.

120310100221 is a deficient number, since it is larger than the sum of its proper divisors (384377631).

120310100221 is an equidigital number, since it uses as much as digits as its factorization.

120310100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384377630.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 120310100221 its reverse (122001013021), we get a palindrome (242311113242).

The spelling of 120310100221 in words is "one hundred twenty billion, three hundred ten million, one hundred thousand, two hundred twenty-one".