200121220211012 has 24 divisors (see below), whose sum is σ = 350352748956672. Its totient is φ = 100020436006400.

The previous prime is 200121220210991. The next prime is 200121220211053. The reversal of 200121220211012 is 210112022121002.

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, 966474212 + ... + 966681252.

It is an arithmetic number, because the mean of its divisors is an integer number (14598031206528).

Almost surely, 2^{200121220211012} is an apocalyptic number.

It is an amenable number.

200121220211012 is a deficient number, since it is larger than the sum of its proper divisors (150231528745660).

200121220211012 is a wasteful number, since it uses less digits than its factorization.

200121220211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302899 (or 302897 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 200121220211012 its reverse (210112022121002), we get a palindrome (410233242332014).

The spelling of 200121220211012 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twenty million, two hundred eleven thousand, twelve".