21114421341040 has 40 divisors (see below), whose sum is σ = 50674611224448. Its totient is φ = 8173324389120.

The previous prime is 21114421341029. The next prime is 21114421341089. The reversal of 21114421341040 is 4014312441112.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4256937307 + ... + 4256942266.

Almost surely, 2^{21114421341040} is an apocalyptic number.

21114421341040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21114421341040 is an abundant number, since it is smaller than the sum of its proper divisors (29560189883408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21114421341040 is a wasteful number, since it uses less digits than its factorization.

21114421341040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8513879617 (or 8513879611 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 21114421341040 its reverse (4014312441112), we get a palindrome (25128733782152).

The spelling of 21114421341040 in words is "twenty-one trillion, one hundred fourteen billion, four hundred twenty-one million, three hundred forty-one thousand, forty".