221221010230313 has 16 divisors (see below), whose sum is σ = 230174393299200. Its totient is φ = 212355989401920.

The previous prime is 221221010230279. The next prime is 221221010230343. The reversal of 221221010230313 is 313032010122122.

It is a cyclic number.

It is not a de Polignac number, because 221221010230313 - 2¹² = 221221010226217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221221010230343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 848138948 + ... + 848399738.

It is an arithmetic number, because the mean of its divisors is an integer number (14385899581200).

Almost surely, 2^{221221010230313} is an apocalyptic number.

It is an amenable number.

221221010230313 is a deficient number, since it is larger than the sum of its proper divisors (8953383068887).

221221010230313 is a wasteful number, since it uses less digits than its factorization.

221221010230313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430072.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 221221010230313 its reverse (313032010122122), we get a palindrome (534253020352435).

The spelling of 221221010230313 in words is "two hundred twenty-one trillion, two hundred twenty-one billion, ten million, two hundred thirty thousand, three hundred thirteen".