20111314122021 has 16 divisors (see below), whose sum is σ = 27985801167360. Its totient is φ = 12822386678640.

The previous prime is 20111314122019. The next prime is 20111314122049. The reversal of 20111314122021 is 12022141311102.

It is not a de Polignac number, because 20111314122021 - 2¹ = 20111314122019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111314122061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24819135 + ... + 25616636.

It is an arithmetic number, because the mean of its divisors is an integer number (1749112572960).

Almost surely, 2^{20111314122021} is an apocalyptic number.

It is an amenable number.

20111314122021 is a deficient number, since it is larger than the sum of its proper divisors (7874487045339).

20111314122021 is a wasteful number, since it uses less digits than its factorization.

20111314122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50441576.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 20111314122021 its reverse (12022141311102), we get a palindrome (32133455433123).

The spelling of 20111314122021 in words is "twenty trillion, one hundred eleven billion, three hundred fourteen million, one hundred twenty-two thousand, twenty-one".