1212010112200 has 48 divisors (see below), whose sum is σ = 2828399188500. Its totient is φ = 483001777920.

The previous prime is 1212010112171. The next prime is 1212010112207. The reversal of 1212010112200 is 22110102121.

It can be written as a sum of positive squares in 6 ways, for example, as 237252771396 + 974757340804 = 487086^2 + 987298^2 .

It is not an unprimeable number, because it can be changed into a prime (1212010112207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11210235 + ... + 11317834.

Almost surely, 2^{1212010112200} is an apocalyptic number.

1212010112200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212010112200 is an abundant number, since it is smaller than the sum of its proper divisors (1616389076300).

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

1212010112200 is a wasteful number, since it uses less digits than its factorization.

1212010112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22528354 (or 22528345 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1212010112200 its reverse (22110102121), we get a palindrome (1234120214321).

The spelling of 1212010112200 in words is "one trillion, two hundred twelve billion, ten million, one hundred twelve thousand, two hundred".