1212210020200 has 24 divisors (see below), whose sum is σ = 2818388297430. Its totient is φ = 484884008000.

The previous prime is 1212210020171. The next prime is 1212210020207. The reversal of 1212210020200 is 20200122121.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 820151206884 + 392058813316 = 905622^2 + 626146^2 .

It is not an unprimeable number, because it can be changed into a prime (1212210020207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3030524851 + ... + 3030525250.

Almost surely, 2^{1212210020200} is an apocalyptic number.

1212210020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212210020200 is an abundant number, since it is smaller than the sum of its proper divisors (1606178277230).

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

1212210020200 is a wasteful number, since it uses less digits than its factorization.

1212210020200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6061050117 (or 6061050108 counting only the distinct ones).

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

Adding to 1212210020200 its reverse (20200122121), we get a palindrome (1232410142321).

The spelling of 1212210020200 in words is "one trillion, two hundred twelve billion, two hundred ten million, twenty thousand, two hundred".