10221210001 has 2 divisors, whose sum is σ = 10221210002. Its totient is φ = 10221210000.

The previous prime is 10221209987. The next prime is 10221210011. The reversal of 10221210001 is 10001212201.

It is a Cunningham number, because it is equal to 101100²+1.

It is an a-pointer prime, because the next prime (10221210011) can be obtained adding 10221210001 to its sum of digits (10).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10221210000 + 1 = 101100^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221210001 - 2⁵ = 10221209969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10221210001.

It is not a weakly prime, because it can be changed into another prime (10221210011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110605000 + 5110605001.

It is an arithmetic number, because the mean of its divisors is an integer number (5110605001).

Almost surely, 2^10221210001 is an apocalyptic number.

It is an amenable number.

10221210001 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221210001 is an equidigital number, since it uses as much as digits as its factorization.

10221210001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10221210001 its reverse (10001212201), we get a palindrome (20222422202).

The spelling of 10221210001 in words is "ten billion, two hundred twenty-one million, two hundred ten thousand, one".