1301231102220 has 216 divisors, whose sum is σ = 4594126065984. Its totient is φ = 297253297152.

The previous prime is 1301231102209. The next prime is 1301231102293. The reversal of 1301231102220 is 222011321031.

1301231102220 is a `hidden beast` number, since 130 + 1 + 2 + 311 + 0 + 2 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1301231102193 and 1301231102202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 15631629 + ... + 15714651.

Almost surely, 2^{1301231102220} is an apocalyptic number.

1301231102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1301231102220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2297063032992).

1301231102220 is an abundant number, since it is smaller than the sum of its proper divisors (3292894963764).

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

1301231102220 is a wasteful number, since it uses less digits than its factorization.

1301231102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84829 (or 84817 counting only the distinct ones).

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

Adding to 1301231102220 its reverse (222011321031), we get a palindrome (1523242423251).

The spelling of 1301231102220 in words is "one trillion, three hundred one billion, two hundred thirty-one million, one hundred two thousand, two hundred twenty".