12100620 has 96 divisors (see below), whose sum is σ = 39610368. Its totient is φ = 2702592.

The previous prime is 12100609. The next prime is 12100637. The reversal of 12100620 is 2600121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12100596 and 12100605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19434 + ... + 20046.

It is an arithmetic number, because the mean of its divisors is an integer number (412608).

Almost surely, 2^12100620 is an apocalyptic number.

12100620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12100620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19805184).

12100620 is an abundant number, since it is smaller than the sum of its proper divisors (27509748).

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

12100620 is a wasteful number, since it uses less digits than its factorization.

12100620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 12100620 is about 3478.5945437777. The cubic root of 12100620 is about 229.5809635502.

Adding to 12100620 its reverse (2600121), we get a palindrome (14700741).

It can be divided in two parts, 12100 and 620, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 12100620 in words is "twelve million, one hundred thousand, six hundred twenty".