21410110442 has 16 divisors (see below), whose sum is σ = 38634786240. Its totient is φ = 8692826688.

The previous prime is 21410110427. The next prime is 21410110451. The reversal of 21410110442 is 24401101412.

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 7 ways as a sum of consecutive naturals, for example, 40244303 + ... + 40244834.

It is an arithmetic number, because the mean of its divisors is an integer number (2414674140).

Almost surely, 2^21410110442 is an apocalyptic number.

21410110442 is a deficient number, since it is larger than the sum of its proper divisors (17224675798).

21410110442 is a wasteful number, since it uses less digits than its factorization.

21410110442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80489165.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 21410110442 its reverse (24401101412), we get a palindrome (45811211854).

The spelling of 21410110442 in words is "twenty-one billion, four hundred ten million, one hundred ten thousand, four hundred forty-two".