12022534 has 4 divisors (see below), whose sum is σ = 18033804. Its totient is φ = 6011266.

The previous prime is 12022531. The next prime is 12022561. The reversal of 12022534 is 43522021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43522021 = 439 ⋅99139.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022531) 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, 3005632 + ... + 3005635.

It is an arithmetic number, because the mean of its divisors is an integer number (4508451).

Almost surely, 2^12022534 is an apocalyptic number.

12022534 is a deficient number, since it is larger than the sum of its proper divisors (6011270).

12022534 is an equidigital number, since it uses as much as digits as its factorization.

12022534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6011269.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 12022534 is about 3467.3525923967. The cubic root of 12022534 is about 229.0860644070.

Adding to 12022534 its reverse (43522021), we get a palindrome (55544555).

The spelling of 12022534 in words is "twelve million, twenty-two thousand, five hundred thirty-four".