12103722 has 64 divisors (see below), whose sum is σ = 29030400. Its totient is φ = 3726000.

The previous prime is 12103709. The next prime is 12103747. The reversal of 12103722 is 22730121.

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

It is a junction number, because it is equal to n+sod(n) for n = 12103695 and 12103704.

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, 48097 + ... + 48347.

It is an arithmetic number, because the mean of its divisors is an integer number (453600).

Almost surely, 2^12103722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12103722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14515200).

12103722 is an abundant number, since it is smaller than the sum of its proper divisors (16926678).

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

12103722 is a wasteful number, since it uses less digits than its factorization.

12103722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 12103722 is about 3479.0403849338. The cubic root of 12103722 is about 229.6005796058.

Adding to 12103722 its reverse (22730121), we get a palindrome (34833843).

The spelling of 12103722 in words is "twelve million, one hundred three thousand, seven hundred twenty-two".