21422222411 has 4 divisors (see below), whose sum is σ = 21499559232. Its totient is φ = 21344885592.

The previous prime is 21422222399. The next prime is 21422222501. The reversal of 21422222411 is 11422222412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21422222411 - 2¹⁴ = 21422206027 is a prime.

It is a super-2 number, since 2×21422222411² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21422222611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38667995 + ... + 38668548.

It is an arithmetic number, because the mean of its divisors is an integer number (5374889808).

Almost surely, 2^21422222411 is an apocalyptic number.

21422222411 is a deficient number, since it is larger than the sum of its proper divisors (77336821).

21422222411 is an equidigital number, since it uses as much as digits as its factorization.

21422222411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77336820.

The product of its digits is 1024, while the sum is 23.

Adding to 21422222411 its reverse (11422222412), we get a palindrome (32844444823).

Subtracting from 21422222411 its reverse (11422222412), we obtain a palindrome (9999999999).

The spelling of 21422222411 in words is "twenty-one billion, four hundred twenty-two million, two hundred twenty-two thousand, four hundred eleven".