12211829 has 8 divisors (see below), whose sum is σ = 14241600. Its totient is φ = 10466988.

The previous prime is 12211819. The next prime is 12211841. The reversal of 12211829 is 92811221.

It is a de Polignac number, because none of the positive numbers 2^k-12211829 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 12211798 and 12211807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211819) 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, 17459 + ... + 18144.

It is an arithmetic number, because the mean of its divisors is an integer number (1780200).

Almost surely, 2^12211829 is an apocalyptic number.

It is an amenable number.

12211829 is a deficient number, since it is larger than the sum of its proper divisors (2029771).

12211829 is an frugal number, since it uses more digits than its factorization.

12211829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35624 (or 35610 counting only the distinct ones).

The product of its digits is 576, while the sum is 26.

The square root of 12211829 is about 3494.5427454819. The cubic root of 12211829 is about 230.2821301533.

The spelling of 12211829 in words is "twelve million, two hundred eleven thousand, eight hundred twenty-nine".