1224343343421 has 48 divisors (see below), whose sum is σ = 2001029217408. Its totient is φ = 714823056000.

The previous prime is 1224343343393. The next prime is 1224343343429. The reversal of 1224343343421 is 1243433434221.

1224343343421 is a `hidden beast` number, since 1 + 2 + 243 + 43 + 34 + 342 + 1 = 666.

It is not a de Polignac number, because 1224343343421 - 2¹⁷ = 1224343212349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224343343429) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1284721 + ... + 2024646.

It is an arithmetic number, because the mean of its divisors is an integer number (41688108696).

Almost surely, 2^{1224343343421} is an apocalyptic number.

1224343343421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1224343343421 is a deficient number, since it is larger than the sum of its proper divisors (776685873987).

1224343343421 is a wasteful number, since it uses less digits than its factorization.

1224343343421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309522 (or 3309519 counting only the distinct ones).

The product of its digits is 165888, while the sum is 36.

Adding to 1224343343421 its reverse (1243433434221), we get a palindrome (2467776777642).

It can be divided in two parts, 1 and 224343343421, that added together give a palindrome (224343343422).

The spelling of 1224343343421 in words is "one trillion, two hundred twenty-four billion, three hundred forty-three million, three hundred forty-three thousand, four hundred twenty-one".