12206231512140 has 192 divisors, whose sum is σ = 34884728524800. Its totient is φ = 3188514462720.

The previous prime is 12206231512109. The next prime is 12206231512147. The reversal of 12206231512140 is 4121513260221.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12206231512098 and 12206231512107.

It is not an unprimeable number, because it can be changed into a prime (12206231512147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 213288730 + ... + 213345950.

It is an arithmetic number, because the mean of its divisors is an integer number (181691294400).

Almost surely, 2^{12206231512140} is an apocalyptic number.

12206231512140 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 12206231512140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17442364262400).

12206231512140 is an abundant number, since it is smaller than the sum of its proper divisors (22678497012660).

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

12206231512140 is a wasteful number, since it uses less digits than its factorization.

12206231512140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57712 (or 57710 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 12206231512140 its reverse (4121513260221), we get a palindrome (16327744772361).

The spelling of 12206231512140 in words is "twelve trillion, two hundred six billion, two hundred thirty-one million, five hundred twelve thousand, one hundred forty".