221230003031 has 2 divisors, whose sum is σ = 221230003032. Its totient is φ = 221230003030.

The previous prime is 221230002991. The next prime is 221230003039. The reversal of 221230003031 is 130300032122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221230003031 - 2²⁶ = 221162894167 is a prime.

It is a super-2 number, since 2×221230003031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221230003039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110615001515 + 110615001516.

It is an arithmetic number, because the mean of its divisors is an integer number (110615001516).

Almost surely, 2^221230003031 is an apocalyptic number.

221230003031 is a deficient number, since it is larger than the sum of its proper divisors (1).

221230003031 is an equidigital number, since it uses as much as digits as its factorization.

221230003031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 221230003031 its reverse (130300032122), we get a palindrome (351530035153).

The spelling of 221230003031 in words is "two hundred twenty-one billion, two hundred thirty million, three thousand, thirty-one".