201201211301 has 4 divisors (see below), whose sum is σ = 203193302604. Its totient is φ = 199209120000.

The previous prime is 201201211283. The next prime is 201201211333. The reversal of 201201211301 is 103112102102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 90135651076 + 111065560225 = 300226^2 + 333265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201201211301 is a prime.

It is a super-2 number, since 2×201201211301² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201201219301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 996045500 + ... + 996045701.

It is an arithmetic number, because the mean of its divisors is an integer number (50798325651).

Almost surely, 2^201201211301 is an apocalyptic number.

It is an amenable number.

201201211301 is a deficient number, since it is larger than the sum of its proper divisors (1992091303).

201201211301 is a wasteful number, since it uses less digits than its factorization.

201201211301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992091302.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 201201211301 its reverse (103112102102), we get a palindrome (304313313403).

The spelling of 201201211301 in words is "two hundred one billion, two hundred one million, two hundred eleven thousand, three hundred one".