12221134 has 4 divisors (see below), whose sum is σ = 18331704. Its totient is φ = 6110566.

The previous prime is 12221117. The next prime is 12221171. The reversal of 12221134 is 43112221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43112221 = 17 ⋅2536013.

It is a super-3 number, since 3×12221134³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3055282 + ... + 3055285.

It is an arithmetic number, because the mean of its divisors is an integer number (4582926).

Almost surely, 2^12221134 is an apocalyptic number.

12221134 is a deficient number, since it is larger than the sum of its proper divisors (6110570).

12221134 is an equidigital number, since it uses as much as digits as its factorization.

12221134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6110569.

The product of its digits is 96, while the sum is 16.

The square root of 12221134 is about 3495.8738535594. The cubic root of 12221134 is about 230.3406043646.

Adding to 12221134 its reverse (43112221), we get a palindrome (55333355).

The spelling of 12221134 in words is "twelve million, two hundred twenty-one thousand, one hundred thirty-four".