12123220211300 has 72 divisors (see below), whose sum is σ = 28977599606592. Its totient is φ = 4365643248000.

The previous prime is 12123220211231. The next prime is 12123220211309. The reversal of 12123220211300 is 311202232121.

12123220211300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (12123220211309) 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, 53387231 + ... + 53613830.

Almost surely, 2^{12123220211300} is an apocalyptic number.

12123220211300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12123220211300 is an abundant number, since it is smaller than the sum of its proper divisors (16854379395292).

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

12123220211300 is a wasteful number, since it uses less digits than its factorization.

12123220211300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107001189 (or 107001182 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12123220211300 its reverse (311202232121), we get a palindrome (12434422443421).

The spelling of 12123220211300 in words is "twelve trillion, one hundred twenty-three billion, two hundred twenty million, two hundred eleven thousand, three hundred".