11212220002000 has 40 divisors (see below), whose sum is σ = 27111147969672. Its totient is φ = 4484888000000.

The previous prime is 11212220001947. The next prime is 11212220002013. The reversal of 11212220002000 is 20002221211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 121028843664 + 11091191158336 = 347892^2 + 3330344^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2803053001 + ... + 2803057000.

Almost surely, 2^{11212220002000} is an apocalyptic number.

11212220002000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212220002000 is an abundant number, since it is smaller than the sum of its proper divisors (15898927967672).

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

11212220002000 is an equidigital number, since it uses as much as digits as its factorization.

11212220002000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606110024 (or 5606110008 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 11212220002000 its reverse (20002221211), we get a palindrome (11232222223211).

The spelling of 11212220002000 in words is "eleven trillion, two hundred twelve billion, two hundred twenty million, two thousand".