2011100122100 has 36 divisors (see below), whose sum is σ = 4456940195904. Its totient is φ = 787324301280.

The previous prime is 2011100122039. The next prime is 2011100122103. The reversal of 2011100122100 is 12210011102.

It is a super-2 number, since 2×2011100122100² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011100122103) 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 11 ways as a sum of consecutive naturals, for example, 213942122 + ... + 213951521.

Almost surely, 2^{2011100122100} is an apocalyptic number.

2011100122100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011100122100 is an abundant number, since it is smaller than the sum of its proper divisors (2445840073804).

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

2011100122100 is a wasteful number, since it uses less digits than its factorization.

2011100122100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427893704 (or 427893697 counting only the distinct ones).

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

Adding to 2011100122100 its reverse (12210011102), we get a palindrome (2023310133202).

The spelling of 2011100122100 in words is "two trillion, eleven billion, one hundred million, one hundred twenty-two thousand, one hundred".