10221000001 has 2 divisors, whose sum is σ = 10221000002. Its totient is φ = 10221000000.

The previous prime is 10220999993. The next prime is 10221000019. The reversal of 10221000001 is 10000012201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10069119025 + 151880976 = 100345^2 + 12324^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221000001 - 2³ = 10220999993 is a prime.

It is not a weakly prime, because it can be changed into another prime (10221000401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110500000 + 5110500001.

It is an arithmetic number, because the mean of its divisors is an integer number (5110500001).

Almost surely, 2^10221000001 is an apocalyptic number.

It is an amenable number.

10221000001 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221000001 is an equidigital number, since it uses as much as digits as its factorization.

10221000001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 10221000001 its reverse (10000012201), we get a palindrome (20221012202).

The spelling of 10221000001 in words is "ten billion, two hundred twenty-one million, one", and thus it is an aban number.