1220331111300 has 216 divisors, whose sum is σ = 4372134748800. Its totient is φ = 278892149760.

The previous prime is 1220331111287. The next prime is 1220331111359. The reversal of 1220331111300 is 31111330221.

1220331111300 is a `hidden beast` number, since 1 + 2 + 20 + 331 + 1 + 11 + 300 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 73821436 + ... + 73837964.

Almost surely, 2^{1220331111300} is an apocalyptic number.

1220331111300 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 1220331111300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2186067374400).

1220331111300 is an abundant number, since it is smaller than the sum of its proper divisors (3151803637500).

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

1220331111300 is a wasteful number, since it uses less digits than its factorization.

1220331111300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28275 (or 28265 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1220331111300 its reverse (31111330221), we get a palindrome (1251442441521).

The spelling of 1220331111300 in words is "one trillion, two hundred twenty billion, three hundred thirty-one million, one hundred eleven thousand, three hundred".