201002212122001 has 2 divisors, whose sum is σ = 201002212122002. Its totient is φ = 201002212122000.

The previous prime is 201002212121989. The next prime is 201002212122071. The reversal of 201002212122001 is 100221212200102.

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., 191845076164225 + 9157135957776 = 13850815^2 + 3026076^2 .

It is a cyclic number.

It is not a de Polignac number, because 201002212122001 - 2⁵ = 201002212121969 is a prime.

It is not a weakly prime, because it can be changed into another prime (201002212122071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100501106061000 + 100501106061001.

It is an arithmetic number, because the mean of its divisors is an integer number (100501106061001).

Almost surely, 2^{201002212122001} is an apocalyptic number.

It is an amenable number.

201002212122001 is a deficient number, since it is larger than the sum of its proper divisors (1).

201002212122001 is an equidigital number, since it uses as much as digits as its factorization.

201002212122001 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 201002212122001 its reverse (100221212200102), we get a palindrome (301223424322103).

It can be divided in two parts, 20100221 and 2122001, that added together give a palindrome (22222222).

The spelling of 201002212122001 in words is "two hundred one trillion, two billion, two hundred twelve million, one hundred twenty-two thousand, one".