200121000000212 has 6 divisors (see below), whose sum is σ = 350211750000378. Its totient is φ = 100060500000104.

The previous prime is 200121000000073. The next prime is 200121000000281. The reversal of 200121000000212 is 212000000121002.

It is a happy number.

200121000000212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 170435218247056 + 29685781753156 = 13055084^2 + 5448466^2 .

It is a junction number, because it is equal to n+sod(n) for n = 200121000000193 and 200121000000202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25015125000023 + ... + 25015125000030.

It is an arithmetic number, because the mean of its divisors is an integer number (58368625000063).

Almost surely, 2^{200121000000212} is an apocalyptic number.

It is an amenable number.

200121000000212 is a deficient number, since it is larger than the sum of its proper divisors (150090750000166).

200121000000212 is a wasteful number, since it uses less digits than its factorization.

200121000000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50030250000057 (or 50030250000055 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 200121000000212 its reverse (212000000121002), we get a palindrome (412121000121214).

The spelling of 200121000000212 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twelve", and thus it is an aban number.