1011212009993 has 2 divisors, whose sum is σ = 1011212009994. Its totient is φ = 1011212009992.

The previous prime is 1011212009981. The next prime is 1011212010043. The reversal of 1011212009993 is 3999002121101.

1011212009993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 975061452304 + 36150557689 = 987452^2 + 190133^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011212009993 - 2¹² = 1011212005897 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011212009923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505606004996 + 505606004997.

It is an arithmetic number, because the mean of its divisors is an integer number (505606004997).

Almost surely, 2^{1011212009993} is an apocalyptic number.

It is an amenable number.

1011212009993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011212009993 is an equidigital number, since it uses as much as digits as its factorization.

1011212009993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 38.

The spelling of 1011212009993 in words is "one trillion, eleven billion, two hundred twelve million, nine thousand, nine hundred ninety-three".