1212101210000 has 100 divisors (see below), whose sum is σ = 2935273849200. Its totient is φ = 484732176000.

The previous prime is 1212101209987. The next prime is 1212101210017. The reversal of 1212101210000 is 121012121.

It is a tau number, because it is divible by the number of its divisors (100).

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, 56579291 + ... + 56600709.

It is an arithmetic number, because the mean of its divisors is an integer number (29352738492).

Almost surely, 2^{1212101210000} is an apocalyptic number.

1212101210000 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 1212101210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1467636924600).

1212101210000 is an abundant number, since it is smaller than the sum of its proper divisors (1723172639200).

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

1212101210000 is an equidigital number, since it uses as much as digits as its factorization.

1212101210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27106 (or 27085 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1212101210000 its reverse (121012121), we get a palindrome (1212222222121).

The spelling of 1212101210000 in words is "one trillion, two hundred twelve billion, one hundred one million, two hundred ten thousand".