21422203111 has 8 divisors (see below), whose sum is σ = 22253630400. Its totient is φ = 20596957920.

The previous prime is 21422203097. The next prime is 21422203129. The reversal of 21422203111 is 11130222412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21422203111 is a prime.

It is a super-2 number, since 2×21422203111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21422203171) 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, 1538460 + ... + 1552321.

It is an arithmetic number, because the mean of its divisors is an integer number (2781703800).

Almost surely, 2^21422203111 is an apocalyptic number.

21422203111 is a deficient number, since it is larger than the sum of its proper divisors (831427289).

21422203111 is a wasteful number, since it uses less digits than its factorization.

21422203111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3091049.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21422203111 its reverse (11130222412), we get a palindrome (32552425523).

The spelling of 21422203111 in words is "twenty-one billion, four hundred twenty-two million, two hundred three thousand, one hundred eleven".