2212321220320 has 48 divisors (see below), whose sum is σ = 5292768519360. Its totient is φ = 873726856704.

The previous prime is 2212321220311. The next prime is 2212321220321. The reversal of 2212321220320 is 230221232122.

It is a junction number, because it is equal to n+sod(n) for n = 2212321220291 and 2212321220300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212321220321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87500067 + ... + 87525346.

It is an arithmetic number, because the mean of its divisors is an integer number (110266010820).

Almost surely, 2^{2212321220320} is an apocalyptic number.

2212321220320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212321220320 is an abundant number, since it is smaller than the sum of its proper divisors (3080447299040).

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

2212321220320 is a wasteful number, since it uses less digits than its factorization.

2212321220320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175025507 (or 175025499 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 2212321220320 its reverse (230221232122), we get a palindrome (2442542452442).

The spelling of 2212321220320 in words is "two trillion, two hundred twelve billion, three hundred twenty-one million, two hundred twenty thousand, three hundred twenty".