212001210111 has 8 divisors (see below), whose sum is σ = 283841178544. Its totient is φ = 140747690880.

The previous prime is 212001210067. The next prime is 212001210121. The reversal of 212001210111 is 111012100212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212001210111 - 2¹¹ = 212001208063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001210121) 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 7 ways as a sum of consecutive naturals, for example, 146611456 + ... + 146612901.

It is an arithmetic number, because the mean of its divisors is an integer number (35480147318).

Almost surely, 2^212001210111 is an apocalyptic number.

212001210111 is a deficient number, since it is larger than the sum of its proper divisors (71839968433).

212001210111 is a wasteful number, since it uses less digits than its factorization.

212001210111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293224601.

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

Adding to 212001210111 its reverse (111012100212), we get a palindrome (323013310323).

The spelling of 212001210111 in words is "two hundred twelve billion, one million, two hundred ten thousand, one hundred eleven".