20322004121 has 4 divisors (see below), whose sum is σ = 20794608912. Its totient is φ = 19849399332.

The previous prime is 20322004111. The next prime is 20322004217. The reversal of 20322004121 is 12140022302.

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 20322004121 - 2¹⁴ = 20321987737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20322004121.

It is not an unprimeable number, because it can be changed into a prime (20322004111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236302331 + ... + 236302416.

It is an arithmetic number, because the mean of its divisors is an integer number (5198652228).

Almost surely, 2^20322004121 is an apocalyptic number.

It is an amenable number.

20322004121 is a deficient number, since it is larger than the sum of its proper divisors (472604791).

20322004121 is an equidigital number, since it uses as much as digits as its factorization.

20322004121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472604790.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20322004121 its reverse (12140022302), we get a palindrome (32462026423).

The spelling of 20322004121 in words is "twenty billion, three hundred twenty-two million, four thousand, one hundred twenty-one".