200111011100100 has 54 divisors (see below), whose sum is σ = 627236847017690. Its totient is φ = 53362936293120.

The previous prime is 200111011100083. The next prime is 200111011100123. The reversal of 200111011100100 is 1001110111002.

It can be written as a sum of positive squares in 3 ways, for example, as 486665292996 + 199624345807104 = 697614^2 + 14128848^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 111172783045 + ... + 111172784844.

Almost surely, 2^{200111011100100} is an apocalyptic number.

200111011100100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200111011100100 is an abundant number, since it is smaller than the sum of its proper divisors (427125835917590).

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

200111011100100 is a wasteful number, since it uses less digits than its factorization.

200111011100100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222345567909 (or 222345567899 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 200111011100100 its reverse (1001110111002), we get a palindrome (201112121211102).

The spelling of 200111011100100 in words is "two hundred trillion, one hundred eleven billion, eleven million, one hundred thousand, one hundred".