20420202404204 has 12 divisors (see below), whose sum is σ = 35735574037800. Its totient is φ = 10210038393408.

The previous prime is 20420202404191. The next prime is 20420202404209. The reversal of 20420202404204 is 40240420202402.

It is not an unprimeable number, because it can be changed into a prime (20420202404209) 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, 14966834 + ... + 16274105.

It is an arithmetic number, because the mean of its divisors is an integer number (2977964503150).

Almost surely, 2^{20420202404204} is an apocalyptic number.

It is an amenable number.

20420202404204 is a deficient number, since it is larger than the sum of its proper divisors (15315371633596).

20420202404204 is a wasteful number, since it uses less digits than its factorization.

20420202404204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31404352 (or 31404350 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 20420202404204 its reverse (40240420202402), we get a palindrome (60660622606606).

The spelling of 20420202404204 in words is "twenty trillion, four hundred twenty billion, two hundred two million, four hundred four thousand, two hundred four".