12221835 has 8 divisors (see below), whose sum is σ = 19554960. Its totient is φ = 6518304.

The previous prime is 12221821. The next prime is 12221837. The reversal of 12221835 is 53812221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12221835 - 2⁴ = 12221819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12221837) 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, 407380 + ... + 407409.

It is an arithmetic number, because the mean of its divisors is an integer number (2444370).

Almost surely, 2^12221835 is an apocalyptic number.

12221835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12221835 is a deficient number, since it is larger than the sum of its proper divisors (7333125).

12221835 is an equidigital number, since it uses as much as digits as its factorization.

12221835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814797.

The product of its digits is 960, while the sum is 24.

The square root of 12221835 is about 3495.9741131765. The cubic root of 12221835 is about 230.3450083661.

The spelling of 12221835 in words is "twelve million, two hundred twenty-one thousand, eight hundred thirty-five".