120021002 has 4 divisors (see below), whose sum is σ = 180031506. Its totient is φ = 60010500.

The previous prime is 120020993. The next prime is 120021017. The reversal of 120021002 is 200120021.

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

It can be written as a sum of positive squares in only one way, i.e., 86136961 + 33884041 = 9281^2 + 5821^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30005249 + ... + 30005252.

Almost surely, 2^120021002 is an apocalyptic number.

120021002 is a deficient number, since it is larger than the sum of its proper divisors (60010504).

120021002 is an equidigital number, since it uses as much as digits as its factorization.

120021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60010503.

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

The square root of 120021002 is about 10955.4097139267. The cubic root of 120021002 is about 493.2711884020.

Adding to 120021002 its reverse (200120021), we get a palindrome (320141023).

The spelling of 120021002 in words is "one hundred twenty million, twenty-one thousand, two".