12221930 has 16 divisors (see below), whose sum is σ = 25142400. Its totient is φ = 4190352.

The previous prime is 12221917. The next prime is 12221969. The reversal of 12221930 is 3912221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87230 + ... + 87369.

It is an arithmetic number, because the mean of its divisors is an integer number (1571400).

Almost surely, 2^12221930 is an apocalyptic number.

12221930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12221930 is an abundant number, since it is smaller than the sum of its proper divisors (12920470).

12221930 is a wasteful number, since it uses less digits than its factorization.

12221930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174613.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12221930 is about 3495.9877002072. The cubic root of 12221930 is about 230.3456051864.

The spelling of 12221930 in words is "twelve million, two hundred twenty-one thousand, nine hundred thirty".