1001201122201 has 16 divisors (see below), whose sum is σ = 1144914946560. Its totient is φ = 857658767040.

The previous prime is 1001201122189. The next prime is 1001201122249. The reversal of 1001201122201 is 1022211021001.

It is a cyclic number.

It is not a de Polignac number, because 1001201122201 - 2¹⁹ = 1001200597913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001201126201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138341155 + ... + 138348391.

It is an arithmetic number, because the mean of its divisors is an integer number (71557184160).

Almost surely, 2^{1001201122201} is an apocalyptic number.

It is an amenable number.

1001201122201 is a deficient number, since it is larger than the sum of its proper divisors (143713824359).

1001201122201 is an equidigital number, since it uses as much as digits as its factorization.

1001201122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16344.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1001201122201 its reverse (1022211021001), we get a palindrome (2023412143202).

The spelling of 1001201122201 in words is "one trillion, one billion, two hundred one million, one hundred twenty-two thousand, two hundred one".