1224410342021 has 6 divisors (see below), whose sum is σ = 1228411735110. Its totient is φ = 1220421940776.

The previous prime is 1224410342009. The next prime is 1224410342069. The reversal of 1224410342021 is 1202430144221.

It can be written as a sum of positive squares in only one way, i.e., 1027616073796 + 196794268225 = 1013714^2 + 443615^2 .

It is not a de Polignac number, because 1224410342021 - 2³⁸ = 949532435077 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 (1224410342321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6401366 + ... + 6589863.

It is an arithmetic number, because the mean of its divisors is an integer number (204735289185).

Almost surely, 2^{1224410342021} is an apocalyptic number.

It is an amenable number.

1224410342021 is a deficient number, since it is larger than the sum of its proper divisors (4001393089).

1224410342021 is an frugal number, since it uses more digits than its factorization.

1224410342021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12991843 (or 12991536 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 1224410342021 its reverse (1202430144221), we get a palindrome (2426840486242).

The spelling of 1224410342021 in words is "one trillion, two hundred twenty-four billion, four hundred ten million, three hundred forty-two thousand, twenty-one".