200121020021212 has 12 divisors (see below), whose sum is σ = 350379913609096. Its totient is φ = 100012473275760.

The previous prime is 200121020021177. The next prime is 200121020021239. The reversal of 200121020021212 is 212120020121002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12009174339 + ... + 12009191002.

Almost surely, 2^{200121020021212} is an apocalyptic number.

It is an amenable number.

200121020021212 is a deficient number, since it is larger than the sum of its proper divisors (150258893587884).

200121020021212 is a wasteful number, since it uses less digits than its factorization.

200121020021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24018367428 (or 24018367426 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 200121020021212 its reverse (212120020121002), we get a palindrome (412241040142214).

The spelling of 200121020021212 in words is "two hundred trillion, one hundred twenty-one billion, twenty million, twenty-one thousand, two hundred twelve".