221313110310331 has 8 divisors (see below), whose sum is σ = 238337615905200. Its totient is φ = 204288664742112.

The previous prime is 221313110310329. The next prime is 221313110310359. The reversal of 221313110310331 is 133013011313122.

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 221313110310331 - 2¹ = 221313110310329 is a prime.

It is a super-2 number, since 2×221313110310331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221313110310296 and 221313110310305.

It is not an unprimeable number, because it can be changed into a prime (221313110310031) 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, 7198756 + ... + 22236193.

It is an arithmetic number, because the mean of its divisors is an integer number (29792201988150).

Almost surely, 2^{221313110310331} is an apocalyptic number.

221313110310331 is a deficient number, since it is larger than the sum of its proper divisors (17024505594869).

221313110310331 is a wasteful number, since it uses less digits than its factorization.

221313110310331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30013325.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 221313110310331 its reverse (133013011313122), we get a palindrome (354326121623453).

The spelling of 221313110310331 in words is "two hundred twenty-one trillion, three hundred thirteen billion, one hundred ten million, three hundred ten thousand, three hundred thirty-one".