201010001210001 has 48 divisors (see below), whose sum is σ = 306833179161600. Its totient is φ = 126598688947584.

The previous prime is 201010001209933. The next prime is 201010001210017. The reversal of 201010001210001 is 100012100010102.

It is a happy number.

It is not a de Polignac number, because 201010001210001 - 2⁷ = 201010001209873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (201010001210101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43289320 + ... + 47707286.

It is an arithmetic number, because the mean of its divisors is an integer number (6392357899200).

Almost surely, 2^{201010001210001} is an apocalyptic number.

It is an amenable number.

201010001210001 is a deficient number, since it is larger than the sum of its proper divisors (105823177951599).

201010001210001 is a wasteful number, since it uses less digits than its factorization.

201010001210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4421758 (or 4421755 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 201010001210001 its reverse (100012100010102), we get a palindrome (301022101220103).

The spelling of 201010001210001 in words is "two hundred one trillion, ten billion, one million, two hundred ten thousand, one".