12242101 has 4 divisors (see below), whose sum is σ = 12249100. Its totient is φ = 12235104.

The previous prime is 12242093. The next prime is 12242107. The reversal of 12242101 is 10124221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10124221 = 43 ⋅235447.

It can be written as a sum of positive squares in 2 ways, for example, as 688900 + 11553201 = 830^2 + 3399^2 .

It is a cyclic number.

It is not a de Polignac number, because 12242101 - 2³ = 12242093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12242107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1705 + ... + 5233.

It is an arithmetic number, because the mean of its divisors is an integer number (3062275).

Almost surely, 2^12242101 is an apocalyptic number.

It is an amenable number.

12242101 is a deficient number, since it is larger than the sum of its proper divisors (6999).

12242101 is an equidigital number, since it uses as much as digits as its factorization.

12242101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6998.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 12242101 is about 3498.8713894626. The cubic root of 12242101 is about 230.4722558727.

Adding to 12242101 its reverse (10124221), we get a palindrome (22366322).

The spelling of 12242101 in words is "twelve million, two hundred forty-two thousand, one hundred one".