201343323012221 has 32 divisors (see below), whose sum is σ = 221830634433408. Its totient is φ = 181615702245120.

The previous prime is 201343323012151. The next prime is 201343323012229. The reversal of 201343323012221 is 122210323343102.

It is a de Polignac number, because none of the positive numbers 2^k-201343323012221 is a prime.

It is a super-3 number, since 3×201343323012221³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201343323012229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 305118791 + ... + 305777963.

It is an arithmetic number, because the mean of its divisors is an integer number (6932207326044).

Almost surely, 2^{201343323012221} is an apocalyptic number.

It is an amenable number.

201343323012221 is a deficient number, since it is larger than the sum of its proper divisors (20487311421187).

201343323012221 is a wasteful number, since it uses less digits than its factorization.

201343323012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662061.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 201343323012221 its reverse (122210323343102), we get a palindrome (323553646355323).

The spelling of 201343323012221 in words is "two hundred one trillion, three hundred forty-three billion, three hundred twenty-three million, twelve thousand, two hundred twenty-one".