11101222021200 has 120 divisors (see below), whose sum is σ = 36522020485728. Its totient is φ = 2880317053440.

The previous prime is 11101222021193. The next prime is 11101222021213. The reversal of 11101222021200 is 212022210111.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11101222021200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124969362 + ... + 125058161.

Almost surely, 2^{11101222021200} is an apocalyptic number.

11101222021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11101222021200 is an abundant number, since it is smaller than the sum of its proper divisors (25420798464528).

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

11101222021200 is a wasteful number, since it uses less digits than its factorization.

11101222021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250027581 (or 250027570 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11101222021200 its reverse (212022210111), we get a palindrome (11313244231311).

The spelling of 11101222021200 in words is "eleven trillion, one hundred one billion, two hundred twenty-two million, twenty-one thousand, two hundred".