10224231581 has 2 divisors, whose sum is σ = 10224231582. Its totient is φ = 10224231580.

The previous prime is 10224231559. The next prime is 10224231601. The reversal of 10224231581 is 18513242201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9077325625 + 1146905956 = 95275^2 + 33866^2 .

It is a cyclic number.

It is not a de Polignac number, because 10224231581 - 2⁶ = 10224231517 is a prime.

It is a super-2 number, since 2×10224231581² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10224231181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5112115790 + 5112115791.

It is an arithmetic number, because the mean of its divisors is an integer number (5112115791).

Almost surely, 2^10224231581 is an apocalyptic number.

It is an amenable number.

10224231581 is a deficient number, since it is larger than the sum of its proper divisors (1).

10224231581 is an equidigital number, since it uses as much as digits as its factorization.

10224231581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 10224231581 its reverse (18513242201), we get a palindrome (28737473782).

The spelling of 10224231581 in words is "ten billion, two hundred twenty-four million, two hundred thirty-one thousand, five hundred eighty-one".