13021311202220 has 48 divisors (see below), whose sum is σ = 27395904237408. Its totient is φ = 5198782901760.

The previous prime is 13021311202183. The next prime is 13021311202223. The reversal of 13021311202220 is 2220211312031.

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 = 13021311202192 and 13021311202201.

It is not an unprimeable number, because it can be changed into a prime (13021311202223) 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, 182225819 + ... + 182297261.

It is an arithmetic number, because the mean of its divisors is an integer number (570748004946).

Almost surely, 2^{13021311202220} is an apocalyptic number.

13021311202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13021311202220 is an abundant number, since it is smaller than the sum of its proper divisors (14374593035188).

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

13021311202220 is a wasteful number, since it uses less digits than its factorization.

13021311202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88370 (or 88368 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13021311202220 its reverse (2220211312031), we get a palindrome (15241522514251).

The spelling of 13021311202220 in words is "thirteen trillion, twenty-one billion, three hundred eleven million, two hundred two thousand, two hundred twenty".