12116620 has 24 divisors (see below), whose sum is σ = 25513488. Its totient is φ = 4833600.

The previous prime is 12116617. The next prime is 12116633. The reversal of 12116620 is 2661121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10890 + ... + 11950.

It is an arithmetic number, because the mean of its divisors is an integer number (1063062).

Almost surely, 2^12116620 is an apocalyptic number.

12116620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12116620 is an abundant number, since it is smaller than the sum of its proper divisors (13396868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12116620 is a wasteful number, since it uses less digits than its factorization.

12116620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641 (or 1639 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 12116620 is about 3480.8935634403. The cubic root of 12116620 is about 229.6821065110.

Adding to 12116620 its reverse (2661121), we get a palindrome (14777741).

The spelling of 12116620 in words is "twelve million, one hundred sixteen thousand, six hundred twenty".