200100122111 has 4 divisors (see below), whose sum is σ = 200119430400. Its totient is φ = 200080813824.

The previous prime is 200100122069. The next prime is 200100122113. The reversal of 200100122111 is 111221001002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200100122111 - 2²² = 200095927807 is a prime.

It is a super-2 number, since 2×200100122111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200100122092 and 200100122101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200100122113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9638591 + ... + 9659328.

It is an arithmetic number, because the mean of its divisors is an integer number (50029857600).

Almost surely, 2^200100122111 is an apocalyptic number.

200100122111 is a deficient number, since it is larger than the sum of its proper divisors (19308289).

200100122111 is a wasteful number, since it uses less digits than its factorization.

200100122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19308288.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 200100122111 its reverse (111221001002), we get a palindrome (311321123113).

The spelling of 200100122111 in words is "two hundred billion, one hundred million, one hundred twenty-two thousand, one hundred eleven".