210002212221001 has 2 divisors, whose sum is σ = 210002212221002. Its totient is φ = 210002212221000.

The previous prime is 210002212220987. The next prime is 210002212221049. The reversal of 210002212221001 is 100122212200012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160333208175625 + 49669004045376 = 12662275^2 + 7047624^2 .

It is a cyclic number.

It is not a de Polignac number, because 210002212221001 - 2³⁷ = 209864773267529 is a prime.

It is not a weakly prime, because it can be changed into another prime (210002212221401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105001106110500 + 105001106110501.

It is an arithmetic number, because the mean of its divisors is an integer number (105001106110501).

Almost surely, 2^{210002212221001} is an apocalyptic number.

It is an amenable number.

210002212221001 is a deficient number, since it is larger than the sum of its proper divisors (1).

210002212221001 is an equidigital number, since it uses as much as digits as its factorization.

210002212221001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210002212221001 its reverse (100122212200012), we get a palindrome (310124424421013).

The spelling of 210002212221001 in words is "two hundred ten trillion, two billion, two hundred twelve million, two hundred twenty-one thousand, one".