20121022320200 has 96 divisors (see below), whose sum is σ = 49097521396800. Its totient is φ = 7653977928960.

The previous prime is 20121022320149. The next prime is 20121022320229. The reversal of 20121022320200 is 202322012102.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 11846210 + ... + 13437809.

It is an arithmetic number, because the mean of its divisors is an integer number (511432514550).

Almost surely, 2^{20121022320200} is an apocalyptic number.

20121022320200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20121022320200 is an abundant number, since it is smaller than the sum of its proper divisors (28976499076600).

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

20121022320200 is a wasteful number, since it uses less digits than its factorization.

20121022320200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25284231 (or 25284222 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20121022320200 its reverse (202322012102), we get a palindrome (20323344332302).

The spelling of 20121022320200 in words is "twenty trillion, one hundred twenty-one billion, twenty-two million, three hundred twenty thousand, two hundred".