212001012111011 has 4 divisors (see below), whose sum is σ = 212001128259000. Its totient is φ = 212000895963024.

The previous prime is 212001012110977. The next prime is 212001012111037. The reversal of 212001012111011 is 110111210100212.

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 212001012111011 - 2¹⁰ = 212001012109987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212001012111041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55291661 + ... + 59001438.

It is an arithmetic number, because the mean of its divisors is an integer number (53000282064750).

Almost surely, 2^{212001012111011} is an apocalyptic number.

212001012111011 is a deficient number, since it is larger than the sum of its proper divisors (116147989).

212001012111011 is a wasteful number, since it uses less digits than its factorization.

212001012111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116147988.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 212001012111011 its reverse (110111210100212), we get a palindrome (322112222211223).

The spelling of 212001012111011 in words is "two hundred twelve trillion, one billion, twelve million, one hundred eleven thousand, eleven".