3601001222001 has 6 divisors (see below), whose sum is σ = 5201446209570. Its totient is φ = 2400667481328.

The previous prime is 3601001221997. The next prime is 3601001222047. The reversal of 3601001222001 is 1002221001063.

3601001222001 is a `hidden beast` number, since 360 + 100 + 1 + 2 + 2 + 200 + 1 = 666.

3601001222001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3341130671376 + 259870550625 = 1827876^2 + 509775^2 .

It is not a de Polignac number, because 3601001222001 - 2² = 3601001221997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3601001232001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200055623436 + ... + 200055623453.

It is an arithmetic number, because the mean of its divisors is an integer number (866907701595).

Almost surely, 2^{3601001222001} is an apocalyptic number.

It is an amenable number.

3601001222001 is a deficient number, since it is larger than the sum of its proper divisors (1600444987569).

3601001222001 is a wasteful number, since it uses less digits than its factorization.

3601001222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400111246895 (or 400111246892 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 3601001222001 its reverse (1002221001063), we get a palindrome (4603222223064).

The spelling of 3601001222001 in words is "three trillion, six hundred one billion, one million, two hundred twenty-two thousand, one".