20424010420202 has 8 divisors (see below), whose sum is σ = 30636069451812. Its totient is φ = 10211987269600.

The previous prime is 20424010420181. The next prime is 20424010420277. The reversal of 20424010420202 is 20202401042402.

It can be written as a sum of positive squares in 2 ways, for example, as 19792969247041 + 631041173161 = 4448929^2 + 794381^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7498949 + ... + 9853032.

Almost surely, 2^{20424010420202} is an apocalyptic number.

20424010420202 is a deficient number, since it is larger than the sum of its proper divisors (10212059031610).

20424010420202 is a wasteful number, since it uses less digits than its factorization.

20424010420202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17940504.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 20424010420202 its reverse (20202401042402), we get a palindrome (40626411462604).

The spelling of 20424010420202 in words is "twenty trillion, four hundred twenty-four billion, ten million, four hundred twenty thousand, two hundred two".