12220321332402 has 24 divisors (see below), whose sum is σ = 26498871759360. Its totient is φ = 4070131386840.

The previous prime is 12220321332319. The next prime is 12220321332409. The reversal of 12220321332402 is 20423312302221.

12220321332402 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 0 + 321 + 332 + 4 + 0 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (12220321332409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275732002 + ... + 275776317.

It is an arithmetic number, because the mean of its divisors is an integer number (1104119656640).

Almost surely, 2^{12220321332402} is an apocalyptic number.

12220321332402 is an abundant number, since it is smaller than the sum of its proper divisors (14278550426958).

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

12220321332402 is a wasteful number, since it uses less digits than its factorization.

12220321332402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551509558 (or 551509555 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 12220321332402 its reverse (20423312302221), we get a palindrome (32643633634623).

The spelling of 12220321332402 in words is "twelve trillion, two hundred twenty billion, three hundred twenty-one million, three hundred thirty-two thousand, four hundred two".