210121120304 has 40 divisors (see below), whose sum is σ = 410123490000. Its totient is φ = 104283115776.

The previous prime is 210121120301. The next prime is 210121120337. The reversal of 210121120304 is 403021121012.

It is not an unprimeable number, because it can be changed into a prime (210121120301) 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, 19185422 + ... + 19196370.

It is an arithmetic number, because the mean of its divisors is an integer number (10253087250).

Almost surely, 2^210121120304 is an apocalyptic number.

It is an amenable number.

210121120304 is a deficient number, since it is larger than the sum of its proper divisors (200002369696).

210121120304 is a wasteful number, since it uses less digits than its factorization.

210121120304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19725 (or 19719 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 210121120304 its reverse (403021121012), we get a palindrome (613142241316).

The spelling of 210121120304 in words is "two hundred ten billion, one hundred twenty-one million, one hundred twenty thousand, three hundred four".