1242213441211 has 2 divisors, whose sum is σ = 1242213441212. Its totient is φ = 1242213441210.

The previous prime is 1242213441193. The next prime is 1242213441263. The reversal of 1242213441211 is 1121443122421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1242213441211 - 2³⁵ = 1207853702843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1242213441211.

It is not a weakly prime, because it can be changed into another prime (1242214441211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621106720605 + 621106720606.

It is an arithmetic number, because the mean of its divisors is an integer number (621106720606).

Almost surely, 2^{1242213441211} is an apocalyptic number.

1242213441211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242213441211 is an equidigital number, since it uses as much as digits as its factorization.

1242213441211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3072, while the sum is 28.

Adding to 1242213441211 its reverse (1121443122421), we get a palindrome (2363656563632).

The spelling of 1242213441211 in words is "one trillion, two hundred forty-two billion, two hundred thirteen million, four hundred forty-one thousand, two hundred eleven".