12021130 has 32 divisors (see below), whose sum is σ = 23856768. Its totient is φ = 4324800.

The previous prime is 12021071. The next prime is 12021131. The reversal of 12021130 is 3112021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (12021131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10800 + ... + 11860.

It is an arithmetic number, because the mean of its divisors is an integer number (745524).

Almost surely, 2^12021130 is an apocalyptic number.

12021130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021130 is a deficient number, since it is larger than the sum of its proper divisors (11835638).

12021130 is a wasteful number, since it uses less digits than its factorization.

12021130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 12021130 is about 3467.1501265449. The cubic root of 12021130 is about 229.0771464491.

Adding to 12021130 its reverse (3112021), we get a palindrome (15133151).

It can be divided in two parts, 1202 and 1130, that added together give a palindrome (2332).

The spelling of 12021130 in words is "twelve million, twenty-one thousand, one hundred thirty".