13021522232412 has 24 divisors (see below), whose sum is σ = 30396942662800. Its totient is φ = 4338594441216.

The previous prime is 13021522232317. The next prime is 13021522232417. The reversal of 13021522232412 is 21423222512031.

It is a happy number.

It is a super-2 number, since 2×13021522232412² (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 13021522232412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021522232417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239092837 + ... + 239147292.

Almost surely, 2^{13021522232412} is an apocalyptic number.

13021522232412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13021522232412 is an abundant number, since it is smaller than the sum of its proper divisors (17375420430388).

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

13021522232412 is a wasteful number, since it uses less digits than its factorization.

13021522232412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478242405 (or 478242403 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 13021522232412 its reverse (21423222512031), we get a palindrome (34444744744443).

The spelling of 13021522232412 in words is "thirteen trillion, twenty-one billion, five hundred twenty-two million, two hundred thirty-two thousand, four hundred twelve".