201100452012 has 18 divisors (see below), whose sum is σ = 508337253788. Its totient is φ = 67033483992.

The previous prime is 201100451989. The next prime is 201100452013. The reversal of 201100452012 is 210254001102.

201100452012 is a `hidden beast` number, since 20 + 110 + 0 + 4 + 520 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (201100452013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2793061798 + ... + 2793061869.

Almost surely, 2^201100452012 is an apocalyptic number.

It is an amenable number.

201100452012 is an abundant number, since it is smaller than the sum of its proper divisors (307236801776).

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

201100452012 is a wasteful number, since it uses less digits than its factorization.

201100452012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5586123677 (or 5586123672 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 201100452012 its reverse (210254001102), we get a palindrome (411354453114).

The spelling of 201100452012 in words is "two hundred one billion, one hundred million, four hundred fifty-two thousand, twelve".