12563221330 has 32 divisors (see below), whose sum is σ = 24913873728. Its totient is φ = 4523208000.

The previous prime is 12563221301. The next prime is 12563221337. The reversal of 12563221330 is 3312236521.

It is not an unprimeable number, because it can be changed into a prime (12563221337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 554292 + ... + 576511.

It is an arithmetic number, because the mean of its divisors is an integer number (778558554).

Almost surely, 2^12563221330 is an apocalyptic number.

12563221330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12563221330 is a deficient number, since it is larger than the sum of its proper divisors (12350652398).

12563221330 is a wasteful number, since it uses less digits than its factorization.

12563221330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130922.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 12563221330 its reverse (3312236521), we get a palindrome (15875457851).

The spelling of 12563221330 in words is "twelve billion, five hundred sixty-three million, two hundred twenty-one thousand, three hundred thirty".