1020010202 has 4 divisors (see below), whose sum is σ = 1530015306. Its totient is φ = 510005100.

The previous prime is 1020010171. The next prime is 1020010237. The reversal of 1020010202 is 2020100201.

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., 943779841 + 76230361 = 30721^2 + 8731^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1020010202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255002549 + ... + 255002552.

Almost surely, 2^1020010202 is an apocalyptic number.

1020010202 is a deficient number, since it is larger than the sum of its proper divisors (510005104).

1020010202 is an equidigital number, since it uses as much as digits as its factorization.

1020010202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510005103.

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

The square root of 1020010202 is about 31937.5985634487. The cubic root of 1020010202 is about 1006.6260656159.

Adding to 1020010202 its reverse (2020100201), we get a palindrome (3040110403).

It can be divided in two parts, 10200 and 10202, that added together give a palindrome (20402).

The spelling of 1020010202 in words is "one billion, twenty million, ten thousand, two hundred two".