1212243144011 has 2 divisors, whose sum is σ = 1212243144012. Its totient is φ = 1212243144010.

The previous prime is 1212243143983. The next prime is 1212243144031. The reversal of 1212243144011 is 1104413422121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212243144011 - 2¹⁰ = 1212243142987 is a prime.

It is a super-3 number, since 3×1212243144011³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1212243144031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606121572005 + 606121572006.

It is an arithmetic number, because the mean of its divisors is an integer number (606121572006).

Almost surely, 2^{1212243144011} is an apocalyptic number.

1212243144011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212243144011 is an equidigital number, since it uses as much as digits as its factorization.

1212243144011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 1212243144011 its reverse (1104413422121), we get a palindrome (2316656566132).

The spelling of 1212243144011 in words is "one trillion, two hundred twelve billion, two hundred forty-three million, one hundred forty-four thousand, eleven".