12211130 has 8 divisors (see below), whose sum is σ = 21980052. Its totient is φ = 4884448.

The previous prime is 12211127. The next prime is 12211139. The reversal of 12211130 is 3111221.

It can be written as a sum of positive squares in 2 ways, for example, as 11812969 + 398161 = 3437^2 + 631^2 .

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

It is a super-2 number, since 2×12211130² = 298223391753800, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12211139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610547 + ... + 610566.

Almost surely, 2^12211130 is an apocalyptic number.

12211130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12211130 is a deficient number, since it is larger than the sum of its proper divisors (9768922).

12211130 is a wasteful number, since it uses less digits than its factorization.

12211130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221120.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 12211130 is about 3494.4427309658. The cubic root of 12211130 is about 230.2777363184.

Adding to 12211130 its reverse (3111221), we get a palindrome (15322351).

Subtracting from 12211130 its reverse (3111221), we obtain a palindrome (9099909).

The spelling of 12211130 in words is "twelve million, two hundred eleven thousand, one hundred thirty".