1212303133200 has 120 divisors (see below), whose sum is σ = 3884696428000. Its totient is φ = 323173831680.

The previous prime is 1212303133189. The next prime is 1212303133201. The reversal of 1212303133200 is 23313032121.

It is a tau number, because it is divible by the number of its divisors (120).

It is not an unprimeable number, because it can be changed into a prime (1212303133201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3493131 + ... + 3824469.

Almost surely, 2^{1212303133200} is an apocalyptic number.

1212303133200 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 1212303133200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1942348214000).

1212303133200 is an abundant number, since it is smaller than the sum of its proper divisors (2672393294800).

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

1212303133200 is a wasteful number, since it uses less digits than its factorization.

1212303133200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334409 (or 334398 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1212303133200 its reverse (23313032121), we get a palindrome (1235616165321).

The spelling of 1212303133200 in words is "one trillion, two hundred twelve billion, three hundred three million, one hundred thirty-three thousand, two hundred".