20222320121 has 4 divisors (see below), whose sum is σ = 20230752000. Its totient is φ = 20213888244.

The previous prime is 20222320073. The next prime is 20222320127. The reversal of 20222320121 is 12102322202.

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 20222320121 - 2¹⁰ = 20222319097 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 20222320121.

It is not an unprimeable number, because it can be changed into a prime (20222320127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4212341 + ... + 4217138.

It is an arithmetic number, because the mean of its divisors is an integer number (5057688000).

Almost surely, 2^20222320121 is an apocalyptic number.

It is an amenable number.

20222320121 is a deficient number, since it is larger than the sum of its proper divisors (8431879).

20222320121 is an equidigital number, since it uses as much as digits as its factorization.

20222320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8431878.

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

Adding to 20222320121 its reverse (12102322202), we get a palindrome (32324642323).

The spelling of 20222320121 in words is "twenty billion, two hundred twenty-two million, three hundred twenty thousand, one hundred twenty-one".