200121422320 has 40 divisors (see below), whose sum is σ = 465345506160. Its totient is φ = 80037696000.

The previous prime is 200121422317. The next prime is 200121422377. The reversal of 200121422320 is 23224121002.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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, 436195 + ... + 768445.

It is an arithmetic number, because the mean of its divisors is an integer number (11633637654).

Almost surely, 2^200121422320 is an apocalyptic number.

200121422320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200121422320 is an abundant number, since it is smaller than the sum of its proper divisors (265224083840).

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

200121422320 is a wasteful number, since it uses less digits than its factorization.

200121422320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339793 (or 339787 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 200121422320 its reverse (23224121002), we get a palindrome (223345543322).

The spelling of 200121422320 in words is "two hundred billion, one hundred twenty-one million, four hundred twenty-two thousand, three hundred twenty".