201100000028 has 12 divisors (see below), whose sum is σ = 352360018080. Its totient is φ = 100425709152.

The previous prime is 201100000027. The next prime is 201100000037. The reversal of 201100000028 is 820000001102.

It is a super-2 number, since 2×201100000028² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201099999958 and 201100000021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201100000027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31069076 + ... + 31075547.

It is an arithmetic number, because the mean of its divisors is an integer number (29363334840).

Almost surely, 2^201100000028 is an apocalyptic number.

It is an amenable number.

201100000028 is a deficient number, since it is larger than the sum of its proper divisors (151260018052).

201100000028 is a wasteful number, since it uses less digits than its factorization.

201100000028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62145436 (or 62145434 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The spelling of 201100000028 in words is "two hundred one billion, one hundred million, twenty-eight", and thus it is an aban number.