12101670 has 128 divisors (see below), whose sum is σ = 38937600. Its totient is φ = 2612736.

The previous prime is 12101669. The next prime is 12101693. The reversal of 12101670 is 7610121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35742 + ... + 36078.

It is an arithmetic number, because the mean of its divisors is an integer number (304200).

Almost surely, 2^12101670 is an apocalyptic number.

12101670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12101670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19468800).

12101670 is an abundant number, since it is smaller than the sum of its proper divisors (26835930).

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

12101670 is a wasteful number, since it uses less digits than its factorization.

12101670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 12101670 is about 3478.7454635256. The cubic root of 12101670 is about 229.5876037895.

Adding to 12101670 its reverse (7610121), we get a palindrome (19711791).

The spelling of 12101670 in words is "twelve million, one hundred one thousand, six hundred seventy".