321130001220000 has 240 divisors, whose sum is σ = 1203852150148032. Its totient is φ = 73401143040000.

The previous prime is 321130001219987. The next prime is 321130001220037. The reversal of 321130001220000 is 22100031123.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 381877621 + ... + 382717620.

Almost surely, 2^{321130001220000} is an apocalyptic number.

321130001220000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321130001220000 is an abundant number, since it is smaller than the sum of its proper divisors (882722148928032).

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

321130001220000 is an equidigital number, since it uses as much as digits as its factorization.

321130001220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764595281 (or 764595258 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 321130001220000 its reverse (22100031123), we get a palindrome (321152101251123).

The spelling of 321130001220000 in words is "three hundred twenty-one trillion, one hundred thirty billion, one million, two hundred twenty thousand".