21422404411 has 8 divisors (see below), whose sum is σ = 23159356880. Its totient is φ = 19746397728.

The previous prime is 21422404403. The next prime is 21422404417. The reversal of 21422404411 is 11440422412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21422404411 - 2³ = 21422404403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21422404417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15235716 + ... + 15237121.

It is an arithmetic number, because the mean of its divisors is an integer number (2894919610).

Almost surely, 2^21422404411 is an apocalyptic number.

21422404411 is a deficient number, since it is larger than the sum of its proper divisors (1736952469).

21422404411 is a wasteful number, since it uses less digits than its factorization.

21422404411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30472893.

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

Adding to 21422404411 its reverse (11440422412), we get a palindrome (32862826823).

The spelling of 21422404411 in words is "twenty-one billion, four hundred twenty-two million, four hundred four thousand, four hundred eleven".