21414412042 has 16 divisors (see below), whose sum is σ = 33815433600. Its totient is φ = 10142707680.

The previous prime is 21414412037. The next prime is 21414412067. The reversal of 21414412042 is 24021441412.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21414411998 and 21414412016.

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, 530742 + ... + 569662.

It is an arithmetic number, because the mean of its divisors is an integer number (2113464600).

Almost surely, 2^21414412042 is an apocalyptic number.

21414412042 is a deficient number, since it is larger than the sum of its proper divisors (12401021558).

21414412042 is a wasteful number, since it uses less digits than its factorization.

21414412042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53421.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 21414412042 its reverse (24021441412), we get a palindrome (45435853454).

The spelling of 21414412042 in words is "twenty-one billion, four hundred fourteen million, four hundred twelve thousand, forty-two".