12100200640 has 112 divisors (see below), whose sum is σ = 32799893760. Its totient is φ = 4208737280.

The previous prime is 12100200587. The next prime is 12100200647. The reversal of 12100200640 is 4600200121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (12100200647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6231 + ... + 155689.

Almost surely, 2^12100200640 is an apocalyptic number.

12100200640 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 12100200640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16399946880).

12100200640 is an abundant number, since it is smaller than the sum of its proper divisors (20699693120).

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

12100200640 is a wasteful number, since it uses less digits than its factorization.

12100200640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149510 (or 149500 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12100200640 its reverse (4600200121), we get a palindrome (16700400761).

The spelling of 12100200640 in words is "twelve billion, one hundred million, two hundred thousand, six hundred forty".