12401421441 has 16 divisors (see below), whose sum is σ = 16639717440. Its totient is φ = 8215421760.

The previous prime is 12401421427. The next prime is 12401421449. The reversal of 12401421441 is 14412410421.

It is not a de Polignac number, because 12401421441 - 2⁹ = 12401420929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12401421449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1172346 + ... + 1182876.

It is an arithmetic number, because the mean of its divisors is an integer number (1039982340).

Almost surely, 2^12401421441 is an apocalyptic number.

It is an amenable number.

12401421441 is a deficient number, since it is larger than the sum of its proper divisors (4238295999).

12401421441 is a wasteful number, since it uses less digits than its factorization.

12401421441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12976.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 12401421441 its reverse (14412410421), we get a palindrome (26813831862).

The spelling of 12401421441 in words is "twelve billion, four hundred one million, four hundred twenty-one thousand, four hundred forty-one".