120010221 has 8 divisors (see below), whose sum is σ = 177792960. Its totient is φ = 80006796.

The previous prime is 120010211. The next prime is 120010229. The reversal of 120010221 is 122010021.

It is not a de Polignac number, because 120010221 - 2²³ = 111621613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120010229) 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 7 ways as a sum of consecutive naturals, for example, 2222385 + ... + 2222438.

It is an arithmetic number, because the mean of its divisors is an integer number (22224120).

Almost surely, 2^120010221 is an apocalyptic number.

It is an amenable number.

120010221 is a deficient number, since it is larger than the sum of its proper divisors (57782739).

120010221 is an equidigital number, since it uses as much as digits as its factorization.

120010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4444832 (or 4444826 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 120010221 is about 10954.9176628581. The cubic root of 120010221 is about 493.2564184427.

Adding to 120010221 its reverse (122010021), we get a palindrome (242020242).

The spelling of 120010221 in words is "one hundred twenty million, ten thousand, two hundred twenty-one".