22404131220321 has 24 divisors (see below), whose sum is σ = 32444154874560. Its totient is φ = 14897996529696.

The previous prime is 22404131220293. The next prime is 22404131220397. The reversal of 22404131220321 is 12302213140422.

22404131220321 is a `hidden beast` number, since 2 + 2 + 4 + 0 + 4 + 1 + 312 + 20 + 321 = 666.

It is not a de Polignac number, because 22404131220321 - 2⁷ = 22404131220193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22404130220321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3782091 + ... + 7688463.

It is an arithmetic number, because the mean of its divisors is an integer number (1351839786440).

Almost surely, 2^{22404131220321} is an apocalyptic number.

It is an amenable number.

22404131220321 is a deficient number, since it is larger than the sum of its proper divisors (10040023654239).

22404131220321 is a wasteful number, since it uses less digits than its factorization.

22404131220321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908005 (or 3908002 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 22404131220321 its reverse (12302213140422), we get a palindrome (34706344360743).

The spelling of 22404131220321 in words is "twenty-two trillion, four hundred four billion, one hundred thirty-one million, two hundred twenty thousand, three hundred twenty-one".