201200012120100 has 288 divisors, whose sum is σ = 665827742519296. Its totient is φ = 45952205644800.

The previous prime is 201200012120099. The next prime is 201200012120123. The reversal of 201200012120100 is 1021210002102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18312546807 + ... + 18312557793.

Almost surely, 2^{201200012120100} is an apocalyptic number.

201200012120100 is a gapful number since it is divisible by the number (20) 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 201200012120100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332913871259648).

201200012120100 is an abundant number, since it is smaller than the sum of its proper divisors (464627730399196).

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

201200012120100 is a wasteful number, since it uses less digits than its factorization.

201200012120100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17115 (or 17108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201200012120100 its reverse (1021210002102), we get a palindrome (202221222122202).

The spelling of 201200012120100 in words is "two hundred one trillion, two hundred billion, twelve million, one hundred twenty thousand, one hundred".