13331002021220 has 48 divisors (see below), whose sum is σ = 30235457504448. Its totient is φ = 4908031036800.

The previous prime is 13331002021199. The next prime is 13331002021231. The reversal of 13331002021220 is 2212020013331.

It is a super-2 number, since 2×13331002021220² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13331002021192 and 13331002021201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73790306 + ... + 73970745.

It is an arithmetic number, because the mean of its divisors is an integer number (629905364676).

Almost surely, 2^{13331002021220} is an apocalyptic number.

13331002021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13331002021220 is an abundant number, since it is smaller than the sum of its proper divisors (16904455483228).

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

13331002021220 is a wasteful number, since it uses less digits than its factorization.

13331002021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147761420 (or 147761418 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13331002021220 its reverse (2212020013331), we get a palindrome (15543022034551).

The spelling of 13331002021220 in words is "thirteen trillion, three hundred thirty-one billion, two million, twenty-one thousand, two hundred twenty".