21114120121204 has 96 divisors (see below), whose sum is σ = 40989531340800. Its totient is φ = 9435815832960.

The previous prime is 21114120121187. The next prime is 21114120121217. The reversal of 21114120121204 is 40212102141112.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 31 ways as a sum of consecutive naturals, for example, 4551435517 + ... + 4551440155.

It is an arithmetic number, because the mean of its divisors is an integer number (426974284800).

Almost surely, 2^{21114120121204} is an apocalyptic number.

It is an amenable number.

21114120121204 is a deficient number, since it is larger than the sum of its proper divisors (19875411219596).

21114120121204 is a wasteful number, since it uses less digits than its factorization.

21114120121204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7373 (or 7371 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 21114120121204 its reverse (40212102141112), we get a palindrome (61326222262316).

The spelling of 21114120121204 in words is "twenty-one trillion, one hundred fourteen billion, one hundred twenty million, one hundred twenty-one thousand, two hundred four".