12201320231100 has 720 divisors, whose sum is σ = 53104630419456. Its totient is φ = 2340311616000.

The previous prime is 12201320231099. The next prime is 12201320231101. The reversal of 12201320231100 is 113202310221.

12201320231100 is a `hidden beast` number, since 1 + 220 + 1 + 320 + 23 + 1 + 100 = 666.

It is an interprime number because it is at equal distance from previous prime (12201320231099) and next prime (12201320231101).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201320231101) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 7355685 + ... + 8860515.

Almost surely, 2^{12201320231100} is an apocalyptic number.

12201320231100 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 12201320231100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26552315209728).

12201320231100 is an abundant number, since it is smaller than the sum of its proper divisors (40903310188356).

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

12201320231100 is a wasteful number, since it uses less digits than its factorization.

12201320231100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504888 (or 1504872 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12201320231100 its reverse (113202310221), we get a palindrome (12314522541321).

The spelling of 12201320231100 in words is "twelve trillion, two hundred one billion, three hundred twenty million, two hundred thirty-one thousand, one hundred".