21114214411 has 4 divisors (see below), whose sum is σ = 21842290800. Its totient is φ = 20386138024.

The previous prime is 21114214409. The next prime is 21114214441. The reversal of 21114214411 is 11441241112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21114214411 - 2¹ = 21114214409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21114214441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364038151 + ... + 364038208.

It is an arithmetic number, because the mean of its divisors is an integer number (5460572700).

Almost surely, 2^21114214411 is an apocalyptic number.

21114214411 is a deficient number, since it is larger than the sum of its proper divisors (728076389).

21114214411 is an equidigital number, since it uses as much as digits as its factorization.

21114214411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728076388.

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

Adding to 21114214411 its reverse (11441241112), we get a palindrome (32555455523).

The spelling of 21114214411 in words is "twenty-one billion, one hundred fourteen million, two hundred fourteen thousand, four hundred eleven".