12219088 has 40 divisors (see below), whose sum is σ = 27418880. Its totient is φ = 5166720.

The previous prime is 12219061. The next prime is 12219089. The reversal of 12219088 is 88091221.

It is a happy number.

12219088 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12219088² = 298612223103488, which contains 22 as substring.

12219088 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12219089) 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, 8158 + ... + 9538.

It is an arithmetic number, because the mean of its divisors is an integer number (685472).

Almost surely, 2^12219088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12219088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13709440).

12219088 is an abundant number, since it is smaller than the sum of its proper divisors (15199792).

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

12219088 is a wasteful number, since it uses less digits than its factorization.

12219088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475 (or 1469 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 12219088 is about 3495.5812106143. The cubic root of 12219088 is about 230.3277494970.

The spelling of 12219088 in words is "twelve million, two hundred nineteen thousand, eighty-eight".