221311322311001 has 8 divisors (see below), whose sum is σ = 238340487061824. Its totient is φ = 204282902828880.

The previous prime is 221311322310961. The next prime is 221311322311007. The reversal of 221311322311001 is 100113223113122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 221311322311001 - 2¹⁸ = 221311322048857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221311322311007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185700341 + ... + 186888306.

It is an arithmetic number, because the mean of its divisors is an integer number (29792560882728).

Almost surely, 2^{221311322311001} is an apocalyptic number.

It is an amenable number.

221311322311001 is a deficient number, since it is larger than the sum of its proper divisors (17029164750823).

221311322311001 is a wasteful number, since it uses less digits than its factorization.

221311322311001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372634351.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 221311322311001 its reverse (100113223113122), we get a palindrome (321424545424123).

The spelling of 221311322311001 in words is "two hundred twenty-one trillion, three hundred eleven billion, three hundred twenty-two million, three hundred eleven thousand, one".