201001313301221 has 16 divisors (see below), whose sum is σ = 205110576632448. Its totient is φ = 196903803096000.

The previous prime is 201001313301211. The next prime is 201001313301281. The reversal of 201001313301221 is 122103313100102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 201001313301221 - 2¹⁸ = 201001313039077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201001313301193 and 201001313301202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201001313301211) 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, 1267659896 + ... + 1267818446.

It is an arithmetic number, because the mean of its divisors is an integer number (12819411039528).

Almost surely, 2^{201001313301221} is an apocalyptic number.

It is an amenable number.

201001313301221 is a deficient number, since it is larger than the sum of its proper divisors (4109263331227).

201001313301221 is a wasteful number, since it uses less digits than its factorization.

201001313301221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195452.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 201001313301221 its reverse (122103313100102), we get a palindrome (323104626401323).

The spelling of 201001313301221 in words is "two hundred one trillion, one billion, three hundred thirteen million, three hundred one thousand, two hundred twenty-one".