201100000101 has 96 divisors (see below), whose sum is σ = 362309501952. Its totient is φ = 96346298880.

The previous prime is 201100000097. The next prime is 201100000109. The reversal of 201100000101 is 101000001102.

It is not a de Polignac number, because 201100000101 - 2² = 201100000097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201100000101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201100000109) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 81317001 + ... + 81319473.

It is an arithmetic number, because the mean of its divisors is an integer number (3774057312).

Almost surely, 2^201100000101 is an apocalyptic number.

201100000101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201100000101 is a deficient number, since it is larger than the sum of its proper divisors (161209501851).

201100000101 is a wasteful number, since it uses less digits than its factorization.

201100000101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4603 (or 4590 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 201100000101 its reverse (101000001102), we get a palindrome (302100001203).

The spelling of 201100000101 in words is "two hundred one billion, one hundred million, one hundred one", and thus it is an aban number.