212011002111 has 16 divisors (see below), whose sum is σ = 300537340416. Its totient is φ = 132644562336.

The previous prime is 212011002107. The next prime is 212011002121. The reversal of 212011002111 is 111200110212.

It is not a de Polignac number, because 212011002111 - 2² = 212011002107 is a prime.

It is a super-2 number, since 2×212011002111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011002101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28983355 + ... + 28990668.

It is an arithmetic number, because the mean of its divisors is an integer number (18783583776).

Almost surely, 2^212011002111 is an apocalyptic number.

212011002111 is a deficient number, since it is larger than the sum of its proper divisors (88526338305).

212011002111 is a wasteful number, since it uses less digits than its factorization.

212011002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57974102.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 212011002111 its reverse (111200110212), we get a palindrome (323211112323).

The spelling of 212011002111 in words is "two hundred twelve billion, eleven million, two thousand, one hundred eleven".