11321212101200 has 60 divisors (see below), whose sum is σ = 27201349478400. Its totient is φ = 4528128977280.

The previous prime is 11321212101167. The next prime is 11321212101203. The reversal of 11321212101200 is 210121212311.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321212101203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4013927 + ... + 6225273.

It is an arithmetic number, because the mean of its divisors is an integer number (453355824640).

Almost surely, 2^{11321212101200} is an apocalyptic number.

11321212101200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11321212101200 is an abundant number, since it is smaller than the sum of its proper divisors (15880137377200).

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

11321212101200 is a wasteful number, since it uses less digits than its factorization.

11321212101200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224164 (or 2224153 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11321212101200 its reverse (210121212311), we get a palindrome (11531333313511).

The spelling of 11321212101200 in words is "eleven trillion, three hundred twenty-one billion, two hundred twelve million, one hundred one thousand, two hundred".