11221220311300 has 72 divisors (see below), whose sum is σ = 25633908873440. Its totient is φ = 4251873772800.

The previous prime is 11221220311229. The next prime is 11221220311303. The reversal of 11221220311300 is 311302212211.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (11221220311303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21587455 + ... + 22101145.

Almost surely, 2^{11221220311300} is an apocalyptic number.

11221220311300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221220311300 is an abundant number, since it is smaller than the sum of its proper divisors (14412688562140).

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

11221220311300 is a wasteful number, since it uses less digits than its factorization.

11221220311300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525221 (or 525214 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11221220311300 its reverse (311302212211), we get a palindrome (11532522523511).

The spelling of 11221220311300 in words is "eleven trillion, two hundred twenty-one billion, two hundred twenty million, three hundred eleven thousand, three hundred".