221030010001231 has 2 divisors, whose sum is σ = 221030010001232. Its totient is φ = 221030010001230.

The previous prime is 221030010001201. The next prime is 221030010001259. The reversal of 221030010001231 is 132100010030122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221030010001231 - 2¹⁵ = 221030009968463 is a prime.

It is a super-2 number, since 2×221030010001231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221030010001201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110515005000615 + 110515005000616.

It is an arithmetic number, because the mean of its divisors is an integer number (110515005000616).

Almost surely, 2^{221030010001231} is an apocalyptic number.

221030010001231 is a deficient number, since it is larger than the sum of its proper divisors (1).

221030010001231 is an equidigital number, since it uses as much as digits as its factorization.

221030010001231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 221030010001231 its reverse (132100010030122), we get a palindrome (353130020031353).

The spelling of 221030010001231 in words is "two hundred twenty-one trillion, thirty billion, ten million, one thousand, two hundred thirty-one".