12445444034421 has 8 divisors (see below), whose sum is σ = 16594005260640. Its totient is φ = 8296922748912.

The previous prime is 12445444034381. The next prime is 12445444034453. The reversal of 12445444034421 is 12443044454421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12445444034421 - 2⁶ = 12445444034357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12445444034521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9250390 + ... + 10510023.

It is an arithmetic number, because the mean of its divisors is an integer number (2074250657580).

Almost surely, 2^{12445444034421} is an apocalyptic number.

It is an amenable number.

12445444034421 is a deficient number, since it is larger than the sum of its proper divisors (4148561226219).

12445444034421 is a wasteful number, since it uses less digits than its factorization.

12445444034421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19970355.

The product of its (nonzero) digits is 983040, while the sum is 42.

Adding to 12445444034421 its reverse (12443044454421), we get a palindrome (24888488488842).

The spelling of 12445444034421 in words is "twelve trillion, four hundred forty-five billion, four hundred forty-four million, thirty-four thousand, four hundred twenty-one".