21004101424112 has 20 divisors (see below), whose sum is σ = 40769844051816. Its totient is φ = 10482851346240.

The previous prime is 21004101424093. The next prime is 21004101424151. The reversal of 21004101424112 is 21142410140012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1199951339 + ... + 1199968842.

Almost surely, 2^{21004101424112} is an apocalyptic number.

It is an amenable number.

21004101424112 is a deficient number, since it is larger than the sum of its proper divisors (19765742627704).

21004101424112 is a wasteful number, since it uses less digits than its factorization.

21004101424112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399920736 (or 2399920730 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 21004101424112 its reverse (21142410140012), we get a palindrome (42146511564124).

The spelling of 21004101424112 in words is "twenty-one trillion, four billion, one hundred one million, four hundred twenty-four thousand, one hundred twelve".