11220210021200 has 120 divisors (see below), whose sum is σ = 27404360766840. Its totient is φ = 4413558988800.

The previous prime is 11220210021169. The next prime is 11220210021217. The reversal of 11220210021200 is 212001202211.

It can be written as a sum of positive squares in 12 ways, for example, as 8624747251264 + 2595462769936 = 2936792^2 + 1611044^2 .

It is a super-2 number, since 2×11220210021200² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 119244572 + ... + 119338628.

It is an arithmetic number, because the mean of its divisors is an integer number (228369673057).

Almost surely, 2^{11220210021200} is an apocalyptic number.

11220210021200 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 11220210021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13702180383420).

11220210021200 is an abundant number, since it is smaller than the sum of its proper divisors (16184150745640).

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

11220210021200 is a wasteful number, since it uses less digits than its factorization.

11220210021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99025 (or 99014 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11220210021200 its reverse (212001202211), we get a palindrome (11432211223411).

The spelling of 11220210021200 in words is "eleven trillion, two hundred twenty billion, two hundred ten million, twenty-one thousand, two hundred".