120000210221 has 4 divisors (see below), whose sum is σ = 121967426844. Its totient is φ = 118032993600.

The previous prime is 120000210217. The next prime is 120000210233. The reversal of 120000210221 is 122012000021.

It is a happy number.

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 19213009321 + 100787200900 = 138611^2 + 317470^2 .

It is a cyclic number.

It is not a de Polignac number, because 120000210221 - 2² = 120000210217 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 (120000210251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983608220 + ... + 983608341.

It is an arithmetic number, because the mean of its divisors is an integer number (30491856711).

Almost surely, 2^120000210221 is an apocalyptic number.

It is an amenable number.

120000210221 is a deficient number, since it is larger than the sum of its proper divisors (1967216623).

120000210221 is an equidigital number, since it uses as much as digits as its factorization.

120000210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967216622.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 120000210221 its reverse (122012000021), we get a palindrome (242012210242).

The spelling of 120000210221 in words is "one hundred twenty billion, two hundred ten thousand, two hundred twenty-one".