2101020201100 has 36 divisors (see below), whose sum is σ = 4559282899024. Its totient is φ = 840395350080.

The previous prime is 2101020201089. The next prime is 2101020201113. The reversal of 2101020201100 is 11020201012.

It is a super-3 number, since 3×2101020201100³ (a number of 38 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9233902 + ... + 9458698.

Almost surely, 2^{2101020201100} is an apocalyptic number.

2101020201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101020201100 is an abundant number, since it is smaller than the sum of its proper divisors (2458262697924).

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

2101020201100 is a wasteful number, since it uses less digits than its factorization.

2101020201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318274 (or 318267 counting only the distinct ones).

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

Adding to 2101020201100 its reverse (11020201012), we get a palindrome (2112040402112).

The spelling of 2101020201100 in words is "two trillion, one hundred one billion, twenty million, two hundred one thousand, one hundred".