221232230029 has 2 divisors, whose sum is σ = 221232230030. Its totient is φ = 221232230028.

The previous prime is 221232230017. The next prime is 221232230111. The reversal of 221232230029 is 920032232122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123410284804 + 97821945225 = 351298^2 + 312765^2 .

It is a cyclic number.

It is not a de Polignac number, because 221232230029 - 2¹⁵ = 221232197261 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221232229979 and 221232230006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221232930029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110616115014 + 110616115015.

It is an arithmetic number, because the mean of its divisors is an integer number (110616115015).

Almost surely, 2^221232230029 is an apocalyptic number.

It is an amenable number.

221232230029 is a deficient number, since it is larger than the sum of its proper divisors (1).

221232230029 is an equidigital number, since it uses as much as digits as its factorization.

221232230029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 221232230029 in words is "two hundred twenty-one billion, two hundred thirty-two million, two hundred thirty thousand, twenty-nine".