21441401335 has 16 divisors (see below), whose sum is σ = 26124733440. Its totient is φ = 16891616160.

The previous prime is 21441401309. The next prime is 21441401341. The reversal of 21441401335 is 53310414412.

It is not a de Polignac number, because 21441401335 - 2⁷ = 21441401207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24111 + ... + 208480.

It is an arithmetic number, because the mean of its divisors is an integer number (1632795840).

Almost surely, 2^21441401335 is an apocalyptic number.

21441401335 is a deficient number, since it is larger than the sum of its proper divisors (4683332105).

21441401335 is a wasteful number, since it uses less digits than its factorization.

21441401335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232878.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 21441401335 its reverse (53310414412), we get a palindrome (74751815747).

The spelling of 21441401335 in words is "twenty-one billion, four hundred forty-one million, four hundred one thousand, three hundred thirty-five".