20314221223121 has 24 divisors (see below), whose sum is σ = 25189424496000. Its totient is φ = 16286951457504.

The previous prime is 20314221223097. The next prime is 20314221223129. The reversal of 20314221223121 is 12132212241302.

It is a de Polignac number, because none of the positive numbers 2^k-20314221223121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20314221223129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138026366 + ... + 138173463.

It is an arithmetic number, because the mean of its divisors is an integer number (1049559354000).

Almost surely, 2^{20314221223121} is an apocalyptic number.

It is an amenable number.

20314221223121 is a deficient number, since it is larger than the sum of its proper divisors (4875203272879).

20314221223121 is a wasteful number, since it uses less digits than its factorization.

20314221223121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276199941 (or 276199934 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 20314221223121 its reverse (12132212241302), we get a palindrome (32446433464423).

The spelling of 20314221223121 in words is "twenty trillion, three hundred fourteen billion, two hundred twenty-one million, two hundred twenty-three thousand, one hundred twenty-one".