20334432322421 has 24 divisors (see below), whose sum is σ = 23745543845184. Its totient is φ = 17056591493760.

The previous prime is 20334432322357. The next prime is 20334432322423. The reversal of 20334432322421 is 12422323443302.

It is not a de Polignac number, because 20334432322421 - 2⁶ = 20334432322357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20334432322423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2877086 + ... + 6996176.

It is an arithmetic number, because the mean of its divisors is an integer number (989397660216).

Almost surely, 2^{20334432322421} is an apocalyptic number.

It is an amenable number.

20334432322421 is a deficient number, since it is larger than the sum of its proper divisors (3411111522763).

20334432322421 is an equidigital number, since it uses as much as digits as its factorization.

20334432322421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4119369 (or 4119290 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 20334432322421 its reverse (12422323443302), we get a palindrome (32756755765723).

The spelling of 20334432322421 in words is "twenty trillion, three hundred thirty-four billion, four hundred thirty-two million, three hundred twenty-two thousand, four hundred twenty-one".