1020202 has 4 divisors (see below), whose sum is σ = 1530306. Its totient is φ = 510100.

The previous prime is 1020163. The next prime is 1020223. The reversal of 1020202 is 2020201.

It is a happy number.

1020202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 998001 + 22201 = 999^2 + 149^2 .

It is an Ulam number.

1020202 is a modest number, since divided by 202 gives 102 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255049 + ... + 255052.

2^1020202 is an apocalyptic number.

1020202 is a deficient number, since it is larger than the sum of its proper divisors (510104).

1020202 is an equidigital number, since it uses as much as digits as its factorization.

1020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510103.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 1020202 is about 1010.0504937873. The cubic root of 1020202 is about 100.6689155431.

Adding to 1020202 its reverse (2020201), we get a palindrome (3040403).

Subtracting 1020202 from its reverse (2020201), we obtain a palindrome (999999).

The spelling of 1020202 in words is "one million, twenty thousand, two hundred two".