1111211212000 has 96 divisors (see below), whose sum is σ = 2824392654720. Its totient is φ = 429157388800.

The previous prime is 1111211211997. The next prime is 1111211212009. The reversal of 1111211212000 is 2121121111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111211212009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4673704 + ... + 4905703.

It is an arithmetic number, because the mean of its divisors is an integer number (29420756820).

Almost surely, 2^{1111211212000} is an apocalyptic number.

1111211212000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111211212000 is an abundant number, since it is smaller than the sum of its proper divisors (1713181442720).

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

1111211212000 is an equidigital number, since it uses as much as digits as its factorization.

1111211212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9579461 (or 9579443 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1111211212000 its reverse (2121121111), we get a palindrome (1113332333111).

The spelling of 1111211212000 in words is "one trillion, one hundred eleven billion, two hundred eleven million, two hundred twelve thousand".