2221320130220 has 24 divisors (see below), whose sum is σ = 4667464078704. Its totient is φ = 888015327296.

The previous prime is 2221320130217. The next prime is 2221320130223. The reversal of 2221320130220 is 220310231222.

It is a happy number.

2221320130220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2221320130217) and next prime (2221320130223).

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 = 2221320130192 and 2221320130201.

It is not an unprimeable number, because it can be changed into a prime (2221320130223) 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, 32009774 + ... + 32079093.

It is an arithmetic number, because the mean of its divisors is an integer number (194477669946).

Almost surely, 2^{2221320130220} is an apocalyptic number.

2221320130220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221320130220 is an abundant number, since it is smaller than the sum of its proper divisors (2446143948484).

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

2221320130220 is a wasteful number, since it uses less digits than its factorization.

2221320130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64090609 (or 64090607 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2221320130220 its reverse (220310231222), we get a palindrome (2441630361442).

The spelling of 2221320130220 in words is "two trillion, two hundred twenty-one billion, three hundred twenty million, one hundred thirty thousand, two hundred twenty".