201201012200100 has 432 divisors, whose sum is σ = 671920169731776. Its totient is φ = 46093501440000.

The previous prime is 201201012200021. The next prime is 201201012200137. The reversal of 201201012200100 is 1002210102102.

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 143 ways as a sum of consecutive naturals, for example, 477500712 + ... + 477921888.

It is an arithmetic number, because the mean of its divisors is an integer number (1555370763268).

Almost surely, 2^{201201012200100} is an apocalyptic number.

201201012200100 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 201201012200100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335960084865888).

201201012200100 is an abundant number, since it is smaller than the sum of its proper divisors (470719157531676).

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

201201012200100 is a wasteful number, since it uses less digits than its factorization.

201201012200100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421644 (or 421618 counting only the distinct ones).

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

Adding to 201201012200100 its reverse (1002210102102), we get a palindrome (202203222302202).

The spelling of 201201012200100 in words is "two hundred one trillion, two hundred one billion, twelve million, two hundred thousand, one hundred".