12221135422 has 16 divisors (see below), whose sum is σ = 19390776480. Its totient is φ = 5764822272.

The previous prime is 12221135417. The next prime is 12221135431. The reversal of 12221135422 is 22453112221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1816347 + ... + 1823062.

It is an arithmetic number, because the mean of its divisors is an integer number (1211923530).

Almost surely, 2^12221135422 is an apocalyptic number.

12221135422 is a deficient number, since it is larger than the sum of its proper divisors (7169641058).

12221135422 is a wasteful number, since it uses less digits than its factorization.

12221135422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3639507.

The product of its digits is 1920, while the sum is 25.

Adding to 12221135422 its reverse (22453112221), we get a palindrome (34674247643).

The spelling of 12221135422 in words is "twelve billion, two hundred twenty-one million, one hundred thirty-five thousand, four hundred twenty-two".