12042101 has 4 divisors (see below), whose sum is σ = 12154752. Its totient is φ = 11929452.

The previous prime is 12042091. The next prime is 12042109. The reversal of 12042101 is 10124021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10124021 = 461 ⋅21961.

It is a cyclic number.

It is not a de Polignac number, because 12042101 - 2²² = 7847797 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 (12042109) 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, 56165 + ... + 56378.

It is an arithmetic number, because the mean of its divisors is an integer number (3038688).

Almost surely, 2^12042101 is an apocalyptic number.

It is an amenable number.

12042101 is a deficient number, since it is larger than the sum of its proper divisors (112651).

12042101 is a wasteful number, since it uses less digits than its factorization.

12042101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112650.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 12042101 is about 3470.1730504400. The cubic root of 12042101 is about 229.2102783042.

Adding to 12042101 its reverse (10124021), we get a palindrome (22166122).

The spelling of 12042101 in words is "twelve million, forty-two thousand, one hundred one".