1224340420111 has 4 divisors (see below), whose sum is σ = 1224553688424. Its totient is φ = 1224127151800.

The previous prime is 1224340420109. The next prime is 1224340420151. The reversal of 1224340420111 is 1110240434221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1224340420111 - 2¹ = 1224340420109 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 (1224340420151) 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, 106625545 + ... + 106637026.

It is an arithmetic number, because the mean of its divisors is an integer number (306138422106).

Almost surely, 2^{1224340420111} is an apocalyptic number.

1224340420111 is a deficient number, since it is larger than the sum of its proper divisors (213268313).

1224340420111 is an equidigital number, since it uses as much as digits as its factorization.

1224340420111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213268312.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1224340420111 its reverse (1110240434221), we get a palindrome (2334580854332).

The spelling of 1224340420111 in words is "one trillion, two hundred twenty-four billion, three hundred forty million, four hundred twenty thousand, one hundred eleven".