12021401304330 has 128 divisors (see below), whose sum is σ = 32220337766400. Its totient is φ = 2845881043200.

The previous prime is 12021401304329. The next prime is 12021401304331. The reversal of 12021401304330 is 3340310412021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12021401304329) and next prime (12021401304331).

It is a self number, because there is not a number n which added to its sum of digits gives 12021401304330.

It is not an unprimeable number, because it can be changed into a prime (12021401304331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 649911 + ... + 4946229.

It is an arithmetic number, because the mean of its divisors is an integer number (251721388800).

Almost surely, 2^{12021401304330} is an apocalyptic number.

12021401304330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12021401304330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16110168883200).

12021401304330 is an abundant number, since it is smaller than the sum of its proper divisors (20198936462070).

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

12021401304330 is a wasteful number, since it uses less digits than its factorization.

12021401304330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4296540.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12021401304330 its reverse (3340310412021), we get a palindrome (15361711716351).

The spelling of 12021401304330 in words is "twelve trillion, twenty-one billion, four hundred one million, three hundred four thousand, three hundred thirty".