20202233422321 has 4 divisors (see below), whose sum is σ = 20267192372544. Its totient is φ = 20137274472100.

The previous prime is 20202233422313. The next prime is 20202233422337. The reversal of 20202233422321 is 12322433220202.

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 20202233422321 - 2³ = 20202233422313 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 20202233422321.

It is not an unprimeable number, because it can be changed into a prime (20202233422391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32479474645 + ... + 32479475266.

It is an arithmetic number, because the mean of its divisors is an integer number (5066798093136).

Almost surely, 2^{20202233422321} is an apocalyptic number.

It is an amenable number.

20202233422321 is a deficient number, since it is larger than the sum of its proper divisors (64958950223).

20202233422321 is an equidigital number, since it uses as much as digits as its factorization.

20202233422321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64958950222.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 20202233422321 its reverse (12322433220202), we get a palindrome (32524666642523).

The spelling of 20202233422321 in words is "twenty trillion, two hundred two billion, two hundred thirty-three million, four hundred twenty-two thousand, three hundred twenty-one".