1220101022328 has 64 divisors (see below), whose sum is σ = 3207934402560. Its totient is φ = 385954563456.

The previous prime is 1220101022321. The next prime is 1220101022369. The reversal of 1220101022328 is 8232201010221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1220101022298 and 1220101022307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220101022321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8631975 + ... + 8772182.

It is an arithmetic number, because the mean of its divisors is an integer number (50123975040).

Almost surely, 2^{1220101022328} is an apocalyptic number.

It is an amenable number.

1220101022328 is an abundant number, since it is smaller than the sum of its proper divisors (1987833380232).

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

1220101022328 is a wasteful number, since it uses less digits than its factorization.

1220101022328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17404316 (or 17404312 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 1220101022328 its reverse (8232201010221), we get a palindrome (9452302032549).

The spelling of 1220101022328 in words is "one trillion, two hundred twenty billion, one hundred one million, twenty-two thousand, three hundred twenty-eight".