200121212110011 has 32 divisors (see below), whose sum is σ = 273400629216000. Its totient is φ = 130136385189888.

The previous prime is 200121212109989. The next prime is 200121212110037. The reversal of 200121212110011 is 110011212121002.

It is a happy number.

It is not a de Polignac number, because 200121212110011 - 2⁷ = 200121212109883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200121212110411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 451459200 + ... + 451902258.

It is an arithmetic number, because the mean of its divisors is an integer number (8543769663000).

Almost surely, 2^{200121212110011} is an apocalyptic number.

200121212110011 is a deficient number, since it is larger than the sum of its proper divisors (73279417105989).

200121212110011 is a wasteful number, since it uses less digits than its factorization.

200121212110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447803.

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

Adding to 200121212110011 its reverse (110011212121002), we get a palindrome (310132424231013).

The spelling of 200121212110011 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twelve million, one hundred ten thousand, eleven".