201211031332221 has 8 divisors (see below), whose sum is σ = 277532457010080. Its totient is φ = 129515146604592.

The previous prime is 201211031332177. The next prime is 201211031332271. The reversal of 201211031332221 is 122233130112102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201211031332221 - 2¹⁰ = 201211031331197 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201211031332191 and 201211031332200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201211031332271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1156385237455 + ... + 1156385237628.

It is an arithmetic number, because the mean of its divisors is an integer number (34691557126260).

Almost surely, 2^{201211031332221} is an apocalyptic number.

It is an amenable number.

201211031332221 is a deficient number, since it is larger than the sum of its proper divisors (76321425677859).

201211031332221 is a wasteful number, since it uses less digits than its factorization.

201211031332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312770475115.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 201211031332221 its reverse (122233130112102), we get a palindrome (323444161444323).

The spelling of 201211031332221 in words is "two hundred one trillion, two hundred eleven billion, thirty-one million, three hundred thirty-two thousand, two hundred twenty-one".