200120021212 has 12 divisors (see below), whose sum is σ = 351663192496. Its totient is φ = 99644823360.

The previous prime is 200120021209. The next prime is 200120021261. The reversal of 200120021212 is 212120021002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 200120021192 and 200120021201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103795728 + ... + 103797655.

Almost surely, 2^200120021212 is an apocalyptic number.

It is an amenable number.

200120021212 is a deficient number, since it is larger than the sum of its proper divisors (151543171284).

200120021212 is a wasteful number, since it uses less digits than its factorization.

200120021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207593628 (or 207593626 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200120021212 its reverse (212120021002), we get a palindrome (412240042214).

The spelling of 200120021212 in words is "two hundred billion, one hundred twenty million, twenty-one thousand, two hundred twelve".