11231211133200 has 120 divisors (see below), whose sum is σ = 35978940504000. Its totient is φ = 2994854151680.

The previous prime is 11231211133097. The next prime is 11231211133201. The reversal of 11231211133200 is 233111213211.

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

It is a super-2 number, since 2×11231211133200² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11231211133201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27878806 + ... + 28278794.

It is an arithmetic number, because the mean of its divisors is an integer number (299824504200).

Almost surely, 2^{11231211133200} is an apocalyptic number.

11231211133200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11231211133200 is an abundant number, since it is smaller than the sum of its proper divisors (24747729370800).

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

11231211133200 is a wasteful number, since it uses less digits than its factorization.

11231211133200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423409 (or 423398 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 11231211133200 its reverse (233111213211), we get a palindrome (11464322346411).

The spelling of 11231211133200 in words is "eleven trillion, two hundred thirty-one billion, two hundred eleven million, one hundred thirty-three thousand, two hundred".