11221100120000 has 70 divisors (see below), whose sum is σ = 27824681539248. Its totient is φ = 4488440032000.

The previous prime is 11221100119987. The next prime is 11221100120033. The reversal of 11221100120000 is 2100112211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 140223752 + ... + 140303751.

Almost surely, 2^{11221100120000} is an apocalyptic number.

11221100120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221100120000 is an abundant number, since it is smaller than the sum of its proper divisors (16603581419248).

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

11221100120000 is an frugal number, since it uses more digits than its factorization.

11221100120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280527535 (or 280527510 counting only the distinct ones).

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

Adding to 11221100120000 its reverse (2100112211), we get a palindrome (11223200232211).

The spelling of 11221100120000 in words is "eleven trillion, two hundred twenty-one billion, one hundred million, one hundred twenty thousand".