20421322014 has 16 divisors (see below), whose sum is σ = 41946499728. Its totient is φ = 6623131392.

The previous prime is 20421321989. The next prime is 20421322043. The reversal of 20421322014 is 41022312402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45993747 + ... + 45994190.

It is an arithmetic number, because the mean of its divisors is an integer number (2621656233).

Almost surely, 2^20421322014 is an apocalyptic number.

20421322014 is an abundant number, since it is smaller than the sum of its proper divisors (21525177714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20421322014 is a wasteful number, since it uses less digits than its factorization.

20421322014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91987979.

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

Adding to 20421322014 its reverse (41022312402), we get a palindrome (61443634416).

The spelling of 20421322014 in words is "twenty billion, four hundred twenty-one million, three hundred twenty-two thousand, fourteen".