201321301132221 has 96 divisors (see below), whose sum is σ = 286069360711680. Its totient is φ = 125697999259008.

The previous prime is 201321301132117. The next prime is 201321301132277. The reversal of 201321301132221 is 122231103123102.

It is not a de Polignac number, because 201321301132221 - 2¹³ = 201321301124029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201321301132191 and 201321301132200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201321301131221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 99319831810 + ... + 99319833836.

It is an arithmetic number, because the mean of its divisors is an integer number (2979889174080).

Almost surely, 2^{201321301132221} is an apocalyptic number.

It is an amenable number.

201321301132221 is a deficient number, since it is larger than the sum of its proper divisors (84748059579459).

201321301132221 is a wasteful number, since it uses less digits than its factorization.

201321301132221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623 (or 3564 counting only the distinct ones).

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

Adding to 201321301132221 its reverse (122231103123102), we get a palindrome (323552404255323).

The spelling of 201321301132221 in words is "two hundred one trillion, three hundred twenty-one billion, three hundred one million, one hundred thirty-two thousand, two hundred twenty-one".