13212213122020 has 48 divisors (see below), whose sum is σ = 30278802149568. Its totient is φ = 4802723199360.

The previous prime is 13212213121973. The next prime is 13212213122029. The reversal of 13212213122020 is 2022131221231.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 13212213121982 and 13212213122000.

It is not an unprimeable number, because it can be changed into a prime (13212213122029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10120362 + ... + 11351041.

It is an arithmetic number, because the mean of its divisors is an integer number (630808378116).

Almost surely, 2^{13212213122020} is an apocalyptic number.

13212213122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13212213122020 is an abundant number, since it is smaller than the sum of its proper divisors (17066589027548).

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

13212213122020 is a wasteful number, since it uses less digits than its factorization.

13212213122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21474220 (or 21474218 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 13212213122020 its reverse (2022131221231), we get a palindrome (15234344343251).

The spelling of 13212213122020 in words is "thirteen trillion, two hundred twelve billion, two hundred thirteen million, one hundred twenty-two thousand, twenty".