200112121221100 has 72 divisors (see below), whose sum is σ = 501585847419888. Its totient is φ = 68487570892800.

The previous prime is 200112121221091. The next prime is 200112121221113. The reversal of 200112121221100 is 1122121211002.

It is a super-2 number, since 2×200112121221100² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5350572777 + ... + 5350610176.

It is an arithmetic number, because the mean of its divisors is an integer number (6966470103054).

Almost surely, 2^{200112121221100} is an apocalyptic number.

200112121221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200112121221100 is an abundant number, since it is smaller than the sum of its proper divisors (301473726198788).

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

200112121221100 is a wasteful number, since it uses less digits than its factorization.

200112121221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10701182995 (or 10701182988 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 200112121221100 its reverse (1122121211002), we get a palindrome (201234242432102).

The spelling of 200112121221100 in words is "two hundred trillion, one hundred twelve billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred".