22113421234 has 4 divisors (see below), whose sum is σ = 33170131854. Its totient is φ = 11056710616.

The previous prime is 22113421219. The next prime is 22113421237. The reversal of 22113421234 is 43212431122.

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

It can be written as a sum of positive squares in only one way, i.e., 19529224009 + 2584197225 = 139747^2 + 50835^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22113421199 and 22113421208.

It is not an unprimeable number, because it can be changed into a prime (22113421237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5528355307 + ... + 5528355310.

Almost surely, 2^22113421234 is an apocalyptic number.

22113421234 is a deficient number, since it is larger than the sum of its proper divisors (11056710620).

22113421234 is a wasteful number, since it uses less digits than its factorization.

22113421234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11056710619.

The product of its digits is 2304, while the sum is 25.

Adding to 22113421234 its reverse (43212431122), we get a palindrome (65325852356).

The spelling of 22113421234 in words is "twenty-two billion, one hundred thirteen million, four hundred twenty-one thousand, two hundred thirty-four".