2221324321420 has 24 divisors (see below), whose sum is σ = 4670186419584. Its totient is φ = 887500139136.

The previous prime is 2221324321369. The next prime is 2221324321421. The reversal of 2221324321420 is 241234231222.

It is not an unprimeable number, because it can be changed into a prime (2221324321421) 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 7 ways as a sum of consecutive naturals, for example, 64331649 + ... + 64366168.

It is an arithmetic number, because the mean of its divisors is an integer number (194591100816).

Almost surely, 2^{2221324321420} is an apocalyptic number.

2221324321420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221324321420 is an abundant number, since it is smaller than the sum of its proper divisors (2448862098164).

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

2221324321420 is a wasteful number, since it uses less digits than its factorization.

2221324321420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128698689 (or 128698687 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 2221324321420 its reverse (241234231222), we get a palindrome (2462558552642).

The spelling of 2221324321420 in words is "two trillion, two hundred twenty-one billion, three hundred twenty-four million, three hundred twenty-one thousand, four hundred twenty".