1412443221421 has 4 divisors (see below), whose sum is σ = 1412495362432. Its totient is φ = 1412391080412.

The previous prime is 1412443221407. The next prime is 1412443221433. The reversal of 1412443221421 is 1241223442141.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1412443221421 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 (1412443221121) 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, 26029851 + ... + 26084056.

It is an arithmetic number, because the mean of its divisors is an integer number (353123840608).

Almost surely, 2^{1412443221421} is an apocalyptic number.

It is an amenable number.

1412443221421 is a deficient number, since it is larger than the sum of its proper divisors (52141011).

1412443221421 is an equidigital number, since it uses as much as digits as its factorization.

1412443221421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52141010.

The product of its digits is 12288, while the sum is 31.

Adding to 1412443221421 its reverse (1241223442141), we get a palindrome (2653666663562).

The spelling of 1412443221421 in words is "one trillion, four hundred twelve billion, four hundred forty-three million, two hundred twenty-one thousand, four hundred twenty-one".