1212300061200 has 180 divisors, whose sum is σ = 4209363635568. Its totient is φ = 323099769600.

The previous prime is 1212300061103. The next prime is 1212300061211. The reversal of 1212300061200 is 21600032121.

1212300061200 is a `hidden beast` number, since 1 + 21 + 2 + 30 + 0 + 0 + 612 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 35 ways as a sum of consecutive naturals, for example, 6426627 + ... + 6612573.

Almost surely, 2^{1212300061200} is an apocalyptic number.

1212300061200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212300061200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2104681817784).

1212300061200 is an abundant number, since it is smaller than the sum of its proper divisors (2997063574368).

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

1212300061200 is a wasteful number, since it uses less digits than its factorization.

1212300061200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187782 (or 187768 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1212300061200 its reverse (21600032121), we get a palindrome (1233900093321).

The spelling of 1212300061200 in words is "one trillion, two hundred twelve billion, three hundred million, sixty-one thousand, two hundred".