212010111011 has 4 divisors (see below), whose sum is σ = 212198901192. Its totient is φ = 211821320832.

The previous prime is 212010110927. The next prime is 212010111077. The reversal of 212010111011 is 110111010212.

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-212010111011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212010110983 and 212010111001.

It is not an unprimeable number, because it can be changed into a prime (212010111311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94393406 + ... + 94395651.

It is an arithmetic number, because the mean of its divisors is an integer number (53049725298).

Almost surely, 2^212010111011 is an apocalyptic number.

212010111011 is a deficient number, since it is larger than the sum of its proper divisors (188790181).

212010111011 is a wasteful number, since it uses less digits than its factorization.

212010111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188790180.

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

Adding to 212010111011 its reverse (110111010212), we get a palindrome (322121121223).

The spelling of 212010111011 in words is "two hundred twelve billion, ten million, one hundred eleven thousand, eleven".