1101020202 has 20 divisors (see below), whose sum is σ = 2467101186. Its totient is φ = 367006680.

The previous prime is 1101020183. The next prime is 1101020209. The reversal of 1101020202 is 2020201011.

It can be written as a sum of positive squares in only one way, i.e., 866654721 + 234365481 = 29439^2 + 15309^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1101020209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3398049 + ... + 3398372.

Almost surely, 2^1101020202 is an apocalyptic number.

1101020202 is an abundant number, since it is smaller than the sum of its proper divisors (1366080984).

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

1101020202 is an equidigital number, since it uses as much as digits as its factorization.

1101020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6796435 (or 6796426 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1101020202 is about 33181.6244629464. The cubic root of 1101020202 is about 1032.5991484343.

Adding to 1101020202 its reverse (2020201011), we get a palindrome (3121221213).

The spelling of 1101020202 in words is "one billion, one hundred one million, twenty thousand, two hundred two".