1220204132300 has 144 divisors (see below), whose sum is σ = 2700333834240. Its totient is φ = 478497507840.

The previous prime is 1220204132297. The next prime is 1220204132377. The reversal of 1220204132300 is 32314020221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1122542357 + ... + 1122543443.

Almost surely, 2^{1220204132300} is an apocalyptic number.

1220204132300 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 1220204132300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1350166917120).

1220204132300 is an abundant number, since it is smaller than the sum of its proper divisors (1480129701940).

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

1220204132300 is a wasteful number, since it uses less digits than its factorization.

1220204132300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960 (or 1953 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1220204132300 its reverse (32314020221), we get a palindrome (1252518152521).

The spelling of 1220204132300 in words is "one trillion, two hundred twenty billion, two hundred four million, one hundred thirty-two thousand, three hundred".