1201220400404 has 24 divisors (see below), whose sum is σ = 2114273581056. Its totient is φ = 597145604000.

The previous prime is 1201220400379. The next prime is 1201220400439. The reversal of 1201220400404 is 4040040221021.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1009274 + ... + 1849614.

It is an arithmetic number, because the mean of its divisors is an integer number (88094732544).

Almost surely, 2^{1201220400404} is an apocalyptic number.

It is an amenable number.

1201220400404 is a deficient number, since it is larger than the sum of its proper divisors (913053180652).

1201220400404 is a wasteful number, since it uses less digits than its factorization.

1201220400404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842407 (or 842405 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1201220400404 its reverse (4040040221021), we get a palindrome (5241260621425).

The spelling of 1201220400404 in words is "one trillion, two hundred one billion, two hundred twenty million, four hundred thousand, four hundred four".