100012201200 has 240 divisors, whose sum is σ = 357008578560. Its totient is φ = 26592065280.

The previous prime is 100012201193. The next prime is 100012201213. The reversal of 100012201200 is 2102210001.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3734257 + ... + 3760943.

It is an arithmetic number, because the mean of its divisors is an integer number (1487535744).

Almost surely, 2^100012201200 is an apocalyptic number.

100012201200 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 100012201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178504289280).

100012201200 is an abundant number, since it is smaller than the sum of its proper divisors (256996377360).

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

100012201200 is a wasteful number, since it uses less digits than its factorization.

100012201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27061 (or 27044 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 100012201200 its reverse (2102210001), we get a palindrome (102114411201).

The spelling of 100012201200 in words is "one hundred billion, twelve million, two hundred one thousand, two hundred".