11222121021200 has 60 divisors (see below), whose sum is σ = 27363550979280. Its totient is φ = 4421850660480.

The previous prime is 11222121021193. The next prime is 11222121021211. The reversal of 11222121021200 is 212012122211.

It is a super-3 number, since 3×11222121021200³ (a number of 40 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209341130 + ... + 209394729.

It is an arithmetic number, because the mean of its divisors is an integer number (456059182988).

Almost surely, 2^{11222121021200} is an apocalyptic number.

11222121021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11222121021200 is an abundant number, since it is smaller than the sum of its proper divisors (16141429958080).

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

11222121021200 is a wasteful number, since it uses less digits than its factorization.

11222121021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418735944 (or 418735933 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11222121021200 its reverse (212012122211), we get a palindrome (11434133143411).

It can be divided in two parts, 1122212 and 1021200, that added together give a palindrome (2143412).

The spelling of 11222121021200 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-one million, twenty-one thousand, two hundred".