212110101011 has 4 divisors (see below), whose sum is σ = 212127624072. Its totient is φ = 212092577952.

The previous prime is 212110100989. The next prime is 212110101023. The reversal of 212110101011 is 110101011212.

212110101011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212110101011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212110100983 and 212110101001.

It is not an unprimeable number, because it can be changed into a prime (212110101211) 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, 8743361 + ... + 8767586.

It is an arithmetic number, because the mean of its divisors is an integer number (53031906018).

Almost surely, 2^212110101011 is an apocalyptic number.

212110101011 is a deficient number, since it is larger than the sum of its proper divisors (17523061).

212110101011 is a wasteful number, since it uses less digits than its factorization.

212110101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17523060.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 212110101011 its reverse (110101011212), we get a palindrome (322211112223).

It can be divided in two parts, 212 and 110101011, that multiplied together give a palindrome (23341414332).

The spelling of 212110101011 in words is "two hundred twelve billion, one hundred ten million, one hundred one thousand, eleven".