1821334322204 has 12 divisors (see below), whose sum is σ = 3187344514200. Its totient is φ = 910664461008.

The previous prime is 1821334322161. The next prime is 1821334322233. The reversal of 1821334322204 is 4022234331281.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2281607 + ... + 2974625.

It is an arithmetic number, because the mean of its divisors is an integer number (265612042850).

Almost surely, 2^{1821334322204} is an apocalyptic number.

It is an amenable number.

1821334322204 is a deficient number, since it is larger than the sum of its proper divisors (1366010191996).

1821334322204 is a wasteful number, since it uses less digits than its factorization.

1821334322204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350052 (or 1350050 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 1821334322204 its reverse (4022234331281), we get a palindrome (5843568653485).

The spelling of 1821334322204 in words is "one trillion, eight hundred twenty-one billion, three hundred thirty-four million, three hundred twenty-two thousand, two hundred four".