20012320422021 has 8 divisors (see below), whose sum is σ = 27543838860544. Its totient is φ = 12911174465760.

The previous prime is 20012320422011. The next prime is 20012320422023. The reversal of 20012320422021 is 12022402321002.

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

It is not a de Polignac number, because 20012320422021 - 2³⁹ = 19462564608133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012320422023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107593120456 + ... + 107593120641.

It is an arithmetic number, because the mean of its divisors is an integer number (3442979857568).

Almost surely, 2^{20012320422021} is an apocalyptic number.

It is an amenable number.

20012320422021 is a deficient number, since it is larger than the sum of its proper divisors (7531518438523).

20012320422021 is a wasteful number, since it uses less digits than its factorization.

20012320422021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215186241131.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20012320422021 its reverse (12022402321002), we get a palindrome (32034722743023).

The spelling of 20012320422021 in words is "twenty trillion, twelve billion, three hundred twenty million, four hundred twenty-two thousand, twenty-one".