2011201012100 has 72 divisors (see below), whose sum is σ = 4996897886400. Its totient is φ = 688293889920.

The previous prime is 2011201012091. The next prime is 2011201012103. The reversal of 2011201012100 is 12101021102.

It is a super-2 number, since 2×2011201012100² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2011201012103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2243375 + ... + 3009174.

Almost surely, 2^{2011201012100} is an apocalyptic number.

2011201012100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011201012100 is an abundant number, since it is smaller than the sum of its proper divisors (2985696874300).

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

2011201012100 is a wasteful number, since it uses less digits than its factorization.

2011201012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5253117 (or 5253110 counting only the distinct ones).

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

Adding to 2011201012100 its reverse (12101021102), we get a palindrome (2023302033202).

The spelling of 2011201012100 in words is "two trillion, eleven billion, two hundred one million, twelve thousand, one hundred".