1220310130221 has 48 divisors (see below), whose sum is σ = 2283621325440. Its totient is φ = 609802162560.

The previous prime is 1220310130159. The next prime is 1220310130223.

1220310130221 is a `hidden beast` number, since 1 + 2 + 2 + 0 + 310 + 130 + 221 = 666.

1220310130221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1220310130221 - 2²⁵ = 1220276575789 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1220310130194 and 1220310130203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220310130223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39194970 + ... + 39226091.

It is an arithmetic number, because the mean of its divisors is an integer number (47575444280).

Almost surely, 2^{1220310130221} is an apocalyptic number.

It is an amenable number.

1220310130221 is a deficient number, since it is larger than the sum of its proper divisors (1063311195219).

1220310130221 is a wasteful number, since it uses less digits than its factorization.

1220310130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78421106 (or 78421103 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

It can be divided in two parts, 1220310 and 130221, that added together give a palindrome (1350531).

The spelling of 1220310130221 in words is "one trillion, two hundred twenty billion, three hundred ten million, one hundred thirty thousand, two hundred twenty-one".