20204040202 has 36 divisors (see below), whose sum is σ = 31259283426. Its totient is φ = 9792979200.

The previous prime is 20204040191. The next prime is 20204040209.

20204040202 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 9 ways, for example, as 11231972361 + 8972067841 = 105981^2 + 94721^2 .

It is not an unprimeable number, because it can be changed into a prime (20204040209) 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 17 ways as a sum of consecutive naturals, for example, 147474678 + ... + 147474814.

Almost surely, 2^20204040202 is an apocalyptic number.

20204040202 is a deficient number, since it is larger than the sum of its proper divisors (11055243224).

20204040202 is an equidigital number, since it uses as much as digits as its factorization.

20204040202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

It can be divided in two parts, 202040 and 40202, that added together give a palindrome (242242).

The spelling of 20204040202 in words is "twenty billion, two hundred four million, forty thousand, two hundred two".