200121201011112 has 32 divisors (see below), whose sum is σ = 502378948610880. Its totient is φ = 66430274192640.

The previous prime is 200121201011101. The next prime is 200121201011131. The reversal of 200121201011112 is 211110102121002.

It is a happy number.

It is a super-2 number, since 2×200121201011112² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200121201011091 and 200121201011100.

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 7 ways as a sum of consecutive naturals, for example, 17299544788 + ... + 17299556355.

It is an arithmetic number, because the mean of its divisors is an integer number (15699342144090).

Almost surely, 2^{200121201011112} is an apocalyptic number.

It is an amenable number.

200121201011112 is an abundant number, since it is smaller than the sum of its proper divisors (302257747599768).

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

200121201011112 is a wasteful number, since it uses less digits than its factorization.

200121201011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34599101393 (or 34599101389 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 200121201011112 its reverse (211110102121002), we get a palindrome (411231303132114).

The spelling of 200121201011112 in words is "two hundred trillion, one hundred twenty-one billion, two hundred one million, eleven thousand, one hundred twelve".