200121024120 has 64 divisors (see below), whose sum is σ = 631961136000. Its totient is φ = 50556889728.

The previous prime is 200121024107. The next prime is 200121024121. The reversal of 200121024120 is 21420121002.

200121024120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 200121024120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121024121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43883910 + ... + 43888469.

It is an arithmetic number, because the mean of its divisors is an integer number (9874392750).

Almost surely, 2^200121024120 is an apocalyptic number.

200121024120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200121024120 is an abundant number, since it is smaller than the sum of its proper divisors (431840111880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200121024120 is a wasteful number, since it uses less digits than its factorization.

200121024120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87772412 (or 87772408 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 200121024120 its reverse (21420121002), we get a palindrome (221541145122).

The spelling of 200121024120 in words is "two hundred billion, one hundred twenty-one million, twenty-four thousand, one hundred twenty".