12022554 has 32 divisors (see below), whose sum is σ = 25505280. Its totient is φ = 3767472.

The previous prime is 12022531. The next prime is 12022561. The reversal of 12022554 is 45522021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12022554.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18259 + ... + 18905.

It is an arithmetic number, because the mean of its divisors is an integer number (797040).

Almost surely, 2^12022554 is an apocalyptic number.

12022554 is an abundant number, since it is smaller than the sum of its proper divisors (13482726).

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

12022554 is a wasteful number, since it uses less digits than its factorization.

12022554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 12022554 is about 3467.3554764402. The cubic root of 12022554 is about 229.0861914384.

Adding to 12022554 its reverse (45522021), we get a palindrome (57544575).

The spelling of 12022554 in words is "twelve million, twenty-two thousand, five hundred fifty-four".