232221201431551 has 2 divisors, whose sum is σ = 232221201431552. Its totient is φ = 232221201431550.

The previous prime is 232221201431537. The next prime is 232221201431563. The reversal of 232221201431551 is 155134102122232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 232221201431551 - 2¹⁵ = 232221201398783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232221201437551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116110600715775 + 116110600715776.

It is an arithmetic number, because the mean of its divisors is an integer number (116110600715776).

Almost surely, 2^{232221201431551} is an apocalyptic number.

232221201431551 is a deficient number, since it is larger than the sum of its proper divisors (1).

232221201431551 is an equidigital number, since it uses as much as digits as its factorization.

232221201431551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 232221201431551 its reverse (155134102122232), we get a palindrome (387355303553783).

The spelling of 232221201431551 in words is "two hundred thirty-two trillion, two hundred twenty-one billion, two hundred one million, four hundred thirty-one thousand, five hundred fifty-one".