202011021100 has 108 divisors (see below), whose sum is σ = 519555590064. Its totient is φ = 67954024320.

The previous prime is 202011021071. The next prime is 202011021101. The reversal of 202011021100 is 1120110202.

202011021100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (202011021101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 129232 + ... + 648631.

It is an arithmetic number, because the mean of its divisors is an integer number (4810699908).

Almost surely, 2^202011021100 is an apocalyptic number.

202011021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202011021100 is an abundant number, since it is smaller than the sum of its proper divisors (317544568964).

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

202011021100 is a wasteful number, since it uses less digits than its factorization.

202011021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777944 (or 777930 counting only the distinct ones).

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

Adding to 202011021100 its reverse (1120110202), we get a palindrome (203131131302).

It can be divided in two parts, 2020110 and 21100, that added together give a triangular number (2041210 = T₂₀₂₀).

The spelling of 202011021100 in words is "two hundred two billion, eleven million, twenty-one thousand, one hundred".