13230221332220 has 24 divisors (see below), whose sum is σ = 29417786257104. Its totient is φ = 4980789207296.

The previous prime is 13230221332219. The next prime is 13230221332261. The reversal of 13230221332220 is 2223312203231.

It is a super-2 number, since 2×13230221332220² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13230221332220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19456207502 + ... + 19456208181.

It is an arithmetic number, because the mean of its divisors is an integer number (1225741094046).

Almost surely, 2^{13230221332220} is an apocalyptic number.

13230221332220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13230221332220 is an abundant number, since it is smaller than the sum of its proper divisors (16187564924884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13230221332220 is a wasteful number, since it uses less digits than its factorization.

13230221332220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38912415709 (or 38912415707 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 13230221332220 its reverse (2223312203231), we get a palindrome (15453533535451).

The spelling of 13230221332220 in words is "thirteen trillion, two hundred thirty billion, two hundred twenty-one million, three hundred thirty-two thousand, two hundred twenty".