212012102120200 has 24 divisors (see below), whose sum is σ = 492928137429930. Its totient is φ = 84804840848000.

The previous prime is 212012102120173. The next prime is 212012102120239. The reversal of 212012102120200 is 2021201210212.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 198527592760324 + 13484509359876 = 14089982^2 + 3672126^2 .

It is a super-2 number, since 2×212012102120200² (a number of 29 digits) contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 530030255101 + ... + 530030255500.

Almost surely, 2^{212012102120200} is an apocalyptic number.

212012102120200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212012102120200 is an abundant number, since it is smaller than the sum of its proper divisors (280916035309730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212012102120200 is a wasteful number, since it uses less digits than its factorization.

212012102120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060060510617 (or 1060060510608 counting only the distinct ones).

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

Adding to 212012102120200 its reverse (2021201210212), we get a palindrome (214033303330412).

The spelling of 212012102120200 in words is "two hundred twelve trillion, twelve billion, one hundred two million, one hundred twenty thousand, two hundred".