212002112011 has 4 divisors (see below), whose sum is σ = 212021200072. Its totient is φ = 211983023952.

The previous prime is 212002111987. The next prime is 212002112071. The reversal of 212002112011 is 110211200212.

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 212002112011 - 2¹⁹ = 212001587723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212002111982 and 212002112000.

It is not an unprimeable number, because it can be changed into a prime (212002112071) 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 in 3 ways as a sum of consecutive naturals, for example, 9527361 + ... + 9549586.

It is an arithmetic number, because the mean of its divisors is an integer number (53005300018).

Almost surely, 2^212002112011 is an apocalyptic number.

212002112011 is a deficient number, since it is larger than the sum of its proper divisors (19088061).

212002112011 is a wasteful number, since it uses less digits than its factorization.

212002112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19088060.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212002112011 its reverse (110211200212), we get a palindrome (322213312223).

The spelling of 212002112011 in words is "two hundred twelve billion, two million, one hundred twelve thousand, eleven".