202100101 has 8 divisors (see below), whose sum is σ = 238936320.
Its totient is φ = 167255088.
The previous prime is 202100069. The next prime is 202100123. The reversal of 202100101 is 101001202.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 202100101 - 25 = 202100069 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (7).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (202109101) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497581 + ... + 497986.
It is an arithmetic number, because the mean of its divisors is an integer number (29867040).
Almost surely, 2202100101 is an apocalyptic number.
It is an amenable number.
202100101 is a deficient number, since it is larger than the sum of its proper divisors (36836219).
202100101 is an equidigital number, since it uses as much as digits as its factorization.
202100101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 995603.
The product of its (nonzero) digits is 4, while the sum is 7.
The square root of 202100101 is about 14216.1915082768.
The cubic root of 202100101 is about 586.8433354735.
Adding to 202100101 its reverse (101001202), we get a palindrome (303101303).
The spelling of 202100101 in words is "two hundred two million, one hundred thousand, one hundred one".