2011220001100 has 18 divisors (see below), whose sum is σ = 4364347402604. Its totient is φ = 804488000400.

The previous prime is 2011220001023. The next prime is 2011220001101. The reversal of 2011220001100 is 11000221102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (2011220001101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10056099906 + ... + 10056100105.

Almost surely, 2^{2011220001100} is an apocalyptic number.

2011220001100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011220001100 is an abundant number, since it is smaller than the sum of its proper divisors (2353127401504).

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

2011220001100 is a wasteful number, since it uses less digits than its factorization.

2011220001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20112200025 (or 20112200018 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2011220001100 its reverse (11000221102), we get a palindrome (2022220222202).

The spelling of 2011220001100 in words is "two trillion, eleven billion, two hundred twenty million, one thousand, one hundred".