1030331212221 has 16 divisors (see below), whose sum is σ = 1433558237184. Its totient is φ = 656998078704.

The previous prime is 1030331212213. The next prime is 1030331212223. The reversal of 1030331212221 is 1222121330301.

It is not a de Polignac number, because 1030331212221 - 2³ = 1030331212213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030331212223) 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, 1662760 + ... + 2196686.

It is an arithmetic number, because the mean of its divisors is an integer number (89597389824).

Almost surely, 2^{1030331212221} is an apocalyptic number.

It is an amenable number.

1030331212221 is a deficient number, since it is larger than the sum of its proper divisors (403227024963).

1030331212221 is a wasteful number, since it uses less digits than its factorization.

1030331212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561920.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1030331212221 its reverse (1222121330301), we get a palindrome (2252452542522).

The spelling of 1030331212221 in words is "one trillion, thirty billion, three hundred thirty-one million, two hundred twelve thousand, two hundred twenty-one".