22111135420 has 24 divisors (see below), whose sum is σ = 50654601648. Its totient is φ = 8040412800.

The previous prime is 22111135339. The next prime is 22111135439. The reversal of 22111135420 is 2453111122.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 22111135391 and 22111135400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50252361 + ... + 50252800.

It is an arithmetic number, because the mean of its divisors is an integer number (2110608402).

Almost surely, 2^22111135420 is an apocalyptic number.

22111135420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111135420 is an abundant number, since it is smaller than the sum of its proper divisors (28543466228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22111135420 is a wasteful number, since it uses less digits than its factorization.

22111135420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100505181 (or 100505179 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 22111135420 its reverse (2453111122), we get a palindrome (24564246542).

The spelling of 22111135420 in words is "twenty-two billion, one hundred eleven million, one hundred thirty-five thousand, four hundred twenty".