2121003144404 has 12 divisors (see below), whose sum is σ = 3764033749728. Its totient is φ = 1045564930200.

The previous prime is 2121003144373. The next prime is 2121003144413. The reversal of 2121003144404 is 4044413001212.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3734160182 + ... + 3734160749.

It is an arithmetic number, because the mean of its divisors is an integer number (313669479144).

Almost surely, 2^{2121003144404} is an apocalyptic number.

It is an amenable number.

2121003144404 is a deficient number, since it is larger than the sum of its proper divisors (1643030605324).

2121003144404 is a wasteful number, since it uses less digits than its factorization.

2121003144404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7468321006 (or 7468321004 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 2121003144404 its reverse (4044413001212), we get a palindrome (6165416145616).

The spelling of 2121003144404 in words is "two trillion, one hundred twenty-one billion, three million, one hundred forty-four thousand, four hundred four".