12111022 has 16 divisors (see below), whose sum is σ = 22649472. Its totient is φ = 4718520.

The previous prime is 12111019. The next prime is 12111023. The reversal of 12111022 is 22011121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111023) 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 in 7 ways as a sum of consecutive naturals, for example, 39168 + ... + 39475.

It is an arithmetic number, because the mean of its divisors is an integer number (1415592).

Almost surely, 2^12111022 is an apocalyptic number.

12111022 is a deficient number, since it is larger than the sum of its proper divisors (10538450).

12111022 is a wasteful number, since it uses less digits than its factorization.

12111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78663.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 12111022 is about 3480.0893666686. The cubic root of 12111022 is about 229.6467292497.

Adding to 12111022 its reverse (22011121), we get a palindrome (34122143).

Subtracting 12111022 from its reverse (22011121), we obtain a palindrome (9900099).

The spelling of 12111022 in words is "twelve million, one hundred eleven thousand, twenty-two".