200121021122212 has 24 divisors (see below), whose sum is σ = 350310044921760. Its totient is φ = 100032440767680.

The previous prime is 200121021122167. The next prime is 200121021122273. The reversal of 200121021122212 is 212221120121002.

It is a self number, because there is not a number n which added to its sum of digits gives 200121021122212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207397512 + ... + 208360192.

It is an arithmetic number, because the mean of its divisors is an integer number (14596251871740).

Almost surely, 2^{200121021122212} is an apocalyptic number.

It is an amenable number.

200121021122212 is a deficient number, since it is larger than the sum of its proper divisors (150189023799548).

200121021122212 is a wasteful number, since it uses less digits than its factorization.

200121021122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977211 (or 977209 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 200121021122212 its reverse (212221120121002), we get a palindrome (412342141243214).

The spelling of 200121021122212 in words is "two hundred trillion, one hundred twenty-one billion, twenty-one million, one hundred twenty-two thousand, two hundred twelve".