1101212209939 has 2 divisors, whose sum is σ = 1101212209940.
Its totient is φ = 1101212209938.
The previous prime is 1101212209907. The next prime is 1101212210003. The reversal of 1101212209939 is 9399022121011.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 1101212209939 - 25 = 1101212209907 is a prime.
It is not a weakly prime, because it can be changed into another prime (1101212249939) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550606104969 + 550606104970.
It is an arithmetic number, because the mean of its divisors is an integer number (550606104970).
Almost surely, 21101212209939 is an apocalyptic number.
1101212209939 is a deficient number, since it is larger than the sum of its proper divisors (1).
1101212209939 is an equidigital number, since it uses as much as digits as its factorization.
1101212209939 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 17496, while the sum is 40.
The spelling of 1101212209939 in words is "one trillion, one hundred one billion, two hundred twelve million, two hundred nine thousand, nine hundred thirty-nine".