2220320645121 has 8 divisors (see below), whose sum is σ = 2963141030304. Its totient is φ = 1478857011680.

The previous prime is 2220320645111. The next prime is 2220320645227. The reversal of 2220320645121 is 1215460230222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2220320645121 - 2⁹ = 2220320644609 is a prime.

It is a super-2 number, since 2×2220320645121² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2220320645111) 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, 339184116 + ... + 339190661.

It is an arithmetic number, because the mean of its divisors is an integer number (370392628788).

Almost surely, 2^{2220320645121} is an apocalyptic number.

It is an amenable number.

2220320645121 is a deficient number, since it is larger than the sum of its proper divisors (742820385183).

2220320645121 is a wasteful number, since it uses less digits than its factorization.

2220320645121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678375871.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 2220320645121 its reverse (1215460230222), we get a palindrome (3435780875343).

The spelling of 2220320645121 in words is "two trillion, two hundred twenty billion, three hundred twenty million, six hundred forty-five thousand, one hundred twenty-one".