13214021443220 has 24 divisors (see below), whose sum is σ = 29884017726024. Its totient is φ = 4879023302016.

The previous prime is 13214021443199. The next prime is 13214021443267. The reversal of 13214021443220 is 2234412041231.

It can be written as a sum of positive squares in 4 ways, for example, as 850401197584 + 12363620245636 = 922172^2 + 3516194^2 .

It is a super-2 number, since 2×13214021443220² (a number of 27 digits) contains 22 as substring.

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, 25411579439 + ... + 25411579958.

It is an arithmetic number, because the mean of its divisors is an integer number (1245167405251).

Almost surely, 2^{13214021443220} is an apocalyptic number.

13214021443220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13214021443220 is an abundant number, since it is smaller than the sum of its proper divisors (16669996282804).

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

13214021443220 is a wasteful number, since it uses less digits than its factorization.

13214021443220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50823159419 (or 50823159417 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 13214021443220 its reverse (2234412041231), we get a palindrome (15448433484451).

The spelling of 13214021443220 in words is "thirteen trillion, two hundred fourteen billion, twenty-one million, four hundred forty-three thousand, two hundred twenty".