12112021221300 has 864 divisors, whose sum is σ = 52351057484544. Its totient is φ = 2260389888000.

The previous prime is 12112021221247. The next prime is 12112021221361. The reversal of 12112021221300 is 312212021121.

12112021221300 is a `hidden beast` number, since 1 + 2 + 1 + 120 + 21 + 221 + 300 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 33151620 + ... + 33514980.

Almost surely, 2^{12112021221300} is an apocalyptic number.

12112021221300 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 12112021221300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26175528742272).

12112021221300 is an abundant number, since it is smaller than the sum of its proper divisors (40239036263244).

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

12112021221300 is a wasteful number, since it uses less digits than its factorization.

12112021221300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363449 (or 363439 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12112021221300 its reverse (312212021121), we get a palindrome (12424233242421).

It can be divided in two parts, 12112021 and 221300, that added together give a palindrome (12333321).

The spelling of 12112021221300 in words is "twelve trillion, one hundred twelve billion, twenty-one million, two hundred twenty-one thousand, three hundred".