20222200321 has 2 divisors, whose sum is σ = 20222200322. Its totient is φ = 20222200320.

The previous prime is 20222200283. The next prime is 20222200351. The reversal of 20222200321 is 12300222202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19849710321 + 372490000 = 140889^2 + 19300^2 .

It is a cyclic number.

It is not a de Polignac number, because 20222200321 - 2¹⁷ = 20222069249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20222200295 and 20222200304.

It is not a weakly prime, because it can be changed into another prime (20222200351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111100160 + 10111100161.

It is an arithmetic number, because the mean of its divisors is an integer number (10111100161).

Almost surely, 2^20222200321 is an apocalyptic number.

It is an amenable number.

20222200321 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222200321 is an equidigital number, since it uses as much as digits as its factorization.

20222200321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20222200321 its reverse (12300222202), we get a palindrome (32522422523).

The spelling of 20222200321 in words is "twenty billion, two hundred twenty-two million, two hundred thousand, three hundred twenty-one".