20322132312121 has 4 divisors (see below), whose sum is σ = 20322158290000. Its totient is φ = 20322106334244.

The previous prime is 20322132312061. The next prime is 20322132312137. The reversal of 20322132312121 is 12121323122302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20322132312121 - 2¹³ = 20322132303929 is a prime.

It is a super-2 number, since 2×20322132312121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20322132312221) 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 3 ways as a sum of consecutive naturals, for example, 11777871 + ... + 13392628.

It is an arithmetic number, because the mean of its divisors is an integer number (5080539572500).

Almost surely, 2^{20322132312121} is an apocalyptic number.

It is an amenable number.

20322132312121 is a deficient number, since it is larger than the sum of its proper divisors (25977879).

20322132312121 is an equidigital number, since it uses as much as digits as its factorization.

20322132312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25977878.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 20322132312121 its reverse (12121323122302), we get a palindrome (32443455434423).

The spelling of 20322132312121 in words is "twenty trillion, three hundred twenty-two billion, one hundred thirty-two million, three hundred twelve thousand, one hundred twenty-one".