20420224040206 has 8 divisors (see below), whose sum is σ = 30864155419944. Its totient is φ = 10132172233560.

The previous prime is 20420224040201. The next prime is 20420224040219. The reversal of 20420224040206 is 60204042202402.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20420224040201) 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, 38969892945 + ... + 38969893468.

It is an arithmetic number, because the mean of its divisors is an integer number (3858019427493).

Almost surely, 2^{20420224040206} is an apocalyptic number.

20420224040206 is a deficient number, since it is larger than the sum of its proper divisors (10443931379738).

20420224040206 is a wasteful number, since it uses less digits than its factorization.

20420224040206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77939786546.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 20420224040206 its reverse (60204042202402), we get a palindrome (80624266242608).

The spelling of 20420224040206 in words is "twenty trillion, four hundred twenty billion, two hundred twenty-four million, forty thousand, two hundred six".