12022111 has 8 divisors (see below), whose sum is σ = 12778560. Its totient is φ = 11310304.

The previous prime is 12022103. The next prime is 12022133. The reversal of 12022111 is 11122021.

It is not a de Polignac number, because 12022111 - 2³ = 12022103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3690 + ... + 6136.

It is an arithmetic number, because the mean of its divisors is an integer number (1597320).

Almost surely, 2^12022111 is an apocalyptic number.

12022111 is a deficient number, since it is larger than the sum of its proper divisors (756449).

12022111 is an frugal number, since it uses more digits than its factorization.

12022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498 (or 2464 counting only the distinct ones).

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

The square root of 12022111 is about 3467.2915943139. The cubic root of 12022111 is about 229.0833776594.

Adding to 12022111 its reverse (11122021), we get a palindrome (23144132).

The spelling of 12022111 in words is "twelve million, twenty-two thousand, one hundred eleven".