21422011433 has 8 divisors (see below), whose sum is σ = 21516969600. Its totient is φ = 21327098128.

The previous prime is 21422011427. The next prime is 21422011451. The reversal of 21422011433 is 33411022412.

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 21422011433 - 2⁴ = 21422011417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21422011399 and 21422011408.

It is not an unprimeable number, because it can be changed into a prime (21422011493) 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, 1260410 + ... + 1277292.

It is an arithmetic number, because the mean of its divisors is an integer number (2689621200).

Almost surely, 2^21422011433 is an apocalyptic number.

It is an amenable number.

21422011433 is a deficient number, since it is larger than the sum of its proper divisors (94958167).

21422011433 is a wasteful number, since it uses less digits than its factorization.

21422011433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22431.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21422011433 its reverse (33411022412), we get a palindrome (54833033845).

The spelling of 21422011433 in words is "twenty-one billion, four hundred twenty-two million, eleven thousand, four hundred thirty-three".