12001442224123 has 4 divisors (see below), whose sum is σ = 13092482426328. Its totient is φ = 10910402021920.

The previous prime is 12001442224111. The next prime is 12001442224139. The reversal of 12001442224123 is 32142224410021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12001442224123 - 2⁹ = 12001442223611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001442224091 and 12001442224100.

It is not an unprimeable number, because it can be changed into a prime (12001442224153) 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, 545520101086 + ... + 545520101107.

It is an arithmetic number, because the mean of its divisors is an integer number (3273120606582).

Almost surely, 2^{12001442224123} is an apocalyptic number.

12001442224123 is a deficient number, since it is larger than the sum of its proper divisors (1091040202205).

12001442224123 is a wasteful number, since it uses less digits than its factorization.

12001442224123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091040202204.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 12001442224123 its reverse (32142224410021), we get a palindrome (44143666634144).

The spelling of 12001442224123 in words is "twelve trillion, one billion, four hundred forty-two million, two hundred twenty-four thousand, one hundred twenty-three".