2121333104404 has 48 divisors (see below), whose sum is σ = 3740603682816. Its totient is φ = 1052619091200.

The previous prime is 2121333104393. The next prime is 2121333104419. The reversal of 2121333104404 is 4044013331212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 794207989 + ... + 794210659.

It is an arithmetic number, because the mean of its divisors is an integer number (77929243392).

Almost surely, 2^{2121333104404} is an apocalyptic number.

It is an amenable number.

2121333104404 is a deficient number, since it is larger than the sum of its proper divisors (1619270578412).

2121333104404 is a wasteful number, since it uses less digits than its factorization.

2121333104404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4936 (or 4934 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 2121333104404 its reverse (4044013331212), we get a palindrome (6165346435616).

The spelling of 2121333104404 in words is "two trillion, one hundred twenty-one billion, three hundred thirty-three million, one hundred four thousand, four hundred four".