12210320211020 has 96 divisors (see below), whose sum is σ = 27826448747328. Its totient is φ = 4482643156992.

The previous prime is 12210320210897. The next prime is 12210320211031. The reversal of 12210320211020 is 2011202301221.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 12210320211020.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8343734 + ... + 9697346.

It is an arithmetic number, because the mean of its divisors is an integer number (289858841118).

Almost surely, 2^{12210320211020} is an apocalyptic number.

12210320211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12210320211020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13913224373664).

12210320211020 is an abundant number, since it is smaller than the sum of its proper divisors (15616128536308).

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

12210320211020 is a wasteful number, since it uses less digits than its factorization.

12210320211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354299 (or 1354297 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12210320211020 its reverse (2011202301221), we get a palindrome (14221522512241).

The spelling of 12210320211020 in words is "twelve trillion, two hundred ten billion, three hundred twenty million, two hundred eleven thousand, twenty".