1031223230221 has 16 divisors (see below), whose sum is σ = 1127247141888. Its totient is φ = 939136492800.

The previous prime is 1031223230201. The next prime is 1031223230239. The reversal of 1031223230221 is 1220323221301.

It is a cyclic number.

It is not a de Polignac number, because 1031223230221 - 2¹⁷ = 1031223099149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031223230192 and 1031223230201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031223230201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4218871 + ... + 4456603.

It is an arithmetic number, because the mean of its divisors is an integer number (70452946368).

Almost surely, 2^{1031223230221} is an apocalyptic number.

It is an amenable number.

1031223230221 is a deficient number, since it is larger than the sum of its proper divisors (96023911667).

1031223230221 is a wasteful number, since it uses less digits than its factorization.

1031223230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246012.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1031223230221 its reverse (1220323221301), we get a palindrome (2251546451522).

The spelling of 1031223230221 in words is "one trillion, thirty-one billion, two hundred twenty-three million, two hundred thirty thousand, two hundred twenty-one".