1201204402104 has 128 divisors (see below), whose sum is σ = 3568195008000. Its totient is φ = 329832898560.

The previous prime is 1201204402103. The next prime is 1201204402127. The reversal of 1201204402104 is 4012044021021.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201204402103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 839929 + ... + 1762920.

It is an arithmetic number, because the mean of its divisors is an integer number (27876523500).

Almost surely, 2^{1201204402104} is an apocalyptic number.

1201204402104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1201204402104 is an abundant number, since it is smaller than the sum of its proper divisors (2366990605896).

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

1201204402104 is a wasteful number, since it uses less digits than its factorization.

1201204402104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602973 (or 2602969 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 1201204402104 its reverse (4012044021021), we get a palindrome (5213248423125).

The spelling of 1201204402104 in words is "one trillion, two hundred one billion, two hundred four million, four hundred two thousand, one hundred four".