201001002222001 has 2 divisors, whose sum is σ = 201001002222002. Its totient is φ = 201001002222000.

The previous prime is 201001002221963. The next prime is 201001002222049. The reversal of 201001002222001 is 100222200100102.

It is a happy number.

201001002222001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186896651130225 + 14104351091776 = 13671015^2 + 3755576^2 .

It is a cyclic number.

It is not a de Polignac number, because 201001002222001 - 2⁹ = 201001002221489 is a prime.

It is not a weakly prime, because it can be changed into another prime (201001002222061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500501111000 + 100500501111001.

It is an arithmetic number, because the mean of its divisors is an integer number (100500501111001).

Almost surely, 2^{201001002222001} is an apocalyptic number.

It is an amenable number.

201001002222001 is a deficient number, since it is larger than the sum of its proper divisors (1).

201001002222001 is an equidigital number, since it uses as much as digits as its factorization.

201001002222001 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 13.

Adding to 201001002222001 its reverse (100222200100102), we get a palindrome (301223202322103).

The spelling of 201001002222001 in words is "two hundred one trillion, one billion, two million, two hundred twenty-two thousand, one".