1001820202 has 8 divisors (see below), whose sum is σ = 1527365412. Its totient is φ = 492698400.

The previous prime is 1001820191. The next prime is 1001820203. The reversal of 1001820202 is 2020281001.

1001820202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1001026321 + 793881 = 31639^2 + 891^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1001820203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4105699 + ... + 4105942.

Almost surely, 2^1001820202 is an apocalyptic number.

1001820202 is a deficient number, since it is larger than the sum of its proper divisors (525545210).

1001820202 is an equidigital number, since it uses as much as digits as its factorization.

1001820202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8211704.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1001820202 is about 31651.5434378799. The cubic root of 1001820202 is about 1000.6063662457.

The spelling of 1001820202 in words is "one billion, one million, eight hundred twenty thousand, two hundred two".