1220401322404 has 24 divisors (see below), whose sum is σ = 2353876223328. Its totient is φ = 549009027840.

The previous prime is 1220401322347. The next prime is 1220401322447. The reversal of 1220401322404 is 4042231040221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142966834 + ... + 142975369.

It is an arithmetic number, because the mean of its divisors is an integer number (98078175972).

Almost surely, 2^{1220401322404} is an apocalyptic number.

It is an amenable number.

1220401322404 is a deficient number, since it is larger than the sum of its proper divisors (1133474900924).

1220401322404 is a wasteful number, since it uses less digits than its factorization.

1220401322404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285942315 (or 285942313 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 1220401322404 its reverse (4042231040221), we get a palindrome (5262632362625).

The spelling of 1220401322404 in words is "one trillion, two hundred twenty billion, four hundred one million, three hundred twenty-two thousand, four hundred four".