21214044041411 has 24 divisors (see below), whose sum is σ = 23324867143200. Its totient is φ = 19282924717056.

The previous prime is 21214044041381. The next prime is 21214044041417. The reversal of 21214044041411 is 11414044041212.

It is a de Polignac number, because none of the positive numbers 2^k-21214044041411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21214044041417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10721 + ... + 6513693.

It is an arithmetic number, because the mean of its divisors is an integer number (971869464300).

Almost surely, 2^{21214044041411} is an apocalyptic number.

21214044041411 is a deficient number, since it is larger than the sum of its proper divisors (2110823101789).

21214044041411 is a wasteful number, since it uses less digits than its factorization.

21214044041411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6503295 (or 6503282 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

Adding to 21214044041411 its reverse (11414044041212), we get a palindrome (32628088082623).

The spelling of 21214044041411 in words is "twenty-one trillion, two hundred fourteen billion, forty-four million, forty-one thousand, four hundred eleven".