20000222201 has 2 divisors, whose sum is σ = 20000222202. Its totient is φ = 20000222200.

The previous prime is 20000222197. The next prime is 20000222219. The reversal of 20000222201 is 10222200002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17193765625 + 2806456576 = 131125^2 + 52976^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000222201 - 2² = 20000222197 is a prime.

It is not a weakly prime, because it can be changed into another prime (20000228201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000111100 + 10000111101.

It is an arithmetic number, because the mean of its divisors is an integer number (10000111101).

Almost surely, 2^20000222201 is an apocalyptic number.

It is an amenable number.

20000222201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000222201 is an equidigital number, since it uses as much as digits as its factorization.

20000222201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20000222201 its reverse (10222200002), we get a palindrome (30222422203).

The spelling of 20000222201 in words is "twenty billion, two hundred twenty-two thousand, two hundred one".