200111122110100 has 18 divisors (see below), whose sum is σ = 434241134979134. Its totient is φ = 80044448844000.

The previous prime is 200111122110061. The next prime is 200111122110169. The reversal of 200111122110100 is 1011221111002.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 31965024752644 + 168146097357456 = 5653762^2 + 12967116^2 .

It is a super-2 number, since 2×200111122110100² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1000555610451 + ... + 1000555610650.

Almost surely, 2^{200111122110100} is an apocalyptic number.

200111122110100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200111122110100 is an abundant number, since it is smaller than the sum of its proper divisors (234130012869034).

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

200111122110100 is a wasteful number, since it uses less digits than its factorization.

200111122110100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001111221115 (or 2001111221108 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 200111122110100 its reverse (1011221111002), we get a palindrome (201122343221102).

The spelling of 200111122110100 in words is "two hundred trillion, one hundred eleven billion, one hundred twenty-two million, one hundred ten thousand, one hundred".