1212201020000 has 120 divisors (see below), whose sum is σ = 3032744992200. Its totient is φ = 476661632000.

The previous prime is 1212201019993. The next prime is 1212201020021. The reversal of 1212201020000 is 201022121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 666356 + ... + 1693644.

It is an arithmetic number, because the mean of its divisors is an integer number (25272874935).

Almost surely, 2^{1212201020000} is an apocalyptic number.

1212201020000 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 1212201020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1516372496100).

1212201020000 is an abundant number, since it is smaller than the sum of its proper divisors (1820543972200).

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

1212201020000 is an equidigital number, since it uses as much as digits as its factorization.

1212201020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027378 (or 1027355 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1212201020000 its reverse (201022121), we get a palindrome (1212402042121).

The spelling of 1212201020000 in words is "one trillion, two hundred twelve billion, two hundred one million, twenty thousand".